// tools/
All 360 tools.
Browser-based. Your files never leave your device. Filter by how you want to reach a tool: in the browser, from your own code over the REST API, or from an AI assistant over MCP.
Works with
AI& LLM Tools
23 tools- 01AI Blog Outline Generator - Create Post Structures FreeGenerate detailed blog post outlines with AI. Choose audience, length, and style. Get SEO-optimized structures in seconds. Free online tool.AI & LLM Tools
- 02AI Content Detector - Free Text AnalysisAnalyze text for AI-generated patterns using perplexity, burstiness, and vocabulary diversity. Free, private - runs entirely in your browser.AI & LLM Tools
- 03AI Email Writer - Generate Professional Emails FreeGenerate professional emails instantly with AI. Choose tone, type, and key points. Free email generator powered by AI.AI & LLM Tools
- 04AI Image Prompt Builder - Midjourney & MoreBuild prompts for Midjourney, DALL-E, Stable Diffusion, and Flux. Style, lighting, and composition controls. Free prompt tool.AI & LLM Tools
- 05AI Model Comparison - 50+ Models Side by SideCompare 50+ AI models: pricing, context windows, capabilities, and benchmarks. Filter by provider, open source, and features.AI & LLM Tools
- 06AI Paragraph Rewriter & Paraphrasing Tool - FreeRewrite and paraphrase any paragraph while keeping the meaning. Choose a tone, from simpler to more formal, and get a fresh version instantly. Free AI paraphrasing tool.AI & LLM Tools
- 07AI Product Description Generator - Free for Shopify & EtsyWrite product descriptions that sell in seconds. Give the product name and features, pick a tone, and get store-ready copy for Shopify, Etsy, Amazon and more. Free AI product description generator.AI & LLM Tools
- 08AI Prompt Generator - Structured BuilderBuild structured prompts for ChatGPT, Claude, and other AI models. Select role, task, context, and format. Free prompt engineering tool.AI & LLM Tools
- 09AI Review Response Generator - Reply to Negative ReviewsGenerate professional responses to negative customer reviews in seconds. Protect your reputation on Google, Trustpilot, and more. Free AI review reply tool.AI & LLM Tools
- 10AI Social Media Caption Generator - FreeGenerate scroll-stopping captions for Instagram, TikTok, LinkedIn and more. Describe the post, pick a platform and tone, and get ready-to-use captions. Free AI caption generator.AI & LLM Tools
- 11AI Text Analyzer - Pattern & Style MetricsAnalyze text patterns: sentence variation, vocabulary diversity, repetition, and burstiness scores. Free writing analysis tool.AI & LLM Tools
- 12AI Text Summarizer - Summarize Any Text FreeTurn long text into a short summary or clear bullet points in seconds. Paste an article, report or email and choose the length. Free AI summarizer for long reads.AI & LLM Tools
- 13AI Token Counter - GPT, Claude & GeminiCount tokens for GPT, Claude, Gemini, and other AI models. Estimate costs per API call with built-in pricing. Free online tool.AI & LLM Tools
- 14AI Tone Changer - Rewrite Text in Any Tone FreeChange the tone of any text instantly with AI. Convert formal to casual, professional to friendly, and more. Free online tone converter.AI & LLM Tools
- 15Code Translator - Convert Code Between Programming LanguagesTranslate code from one programming language to another, idiomatically, with a list of every place the behaviour may differ. Python to TypeScript, JavaScript to Go, VBA to Python and more.AI & LLM Tools
- 16Context Window Visualizer - AI Token UsageSee how much of each AI model's context window your text fills. Visual progress bars and cost estimates for GPT, Claude, and Gemini.AI & LLM Tools
- 17Excel Formula Generator and Explainer - Excel and Google SheetsDescribe what you need and get a working Excel or Google Sheets formula with a step-by-step explanation and pitfalls, or paste a formula to have it explained. English and Dutch function names.AI & LLM Tools
- 18Fine-Tuning Data Formatter - JSONL ExportConvert CSV, JSON, or manual input into JSONL format for OpenAI and Anthropic fine-tuning. Token count and cost estimates included.AI & LLM Tools
- 19LLM Pricing Calculator - Compare 50+ ModelsCompare costs across 50+ AI models side by side. Calculate pricing for GPT, Claude, Gemini, Llama, and more. Free cost estimator.AI & LLM Tools
- 20Prompt Improver - Rewrite Your Prompt for Better AI AnswersPaste a rough prompt and get it back with a role, context, constraints and an output format, plus a list of what changed. For ChatGPT, Claude, Gemini and open models.AI & LLM Tools
- 21Scam Message Checker - Is This Text, Email or WhatsApp a Scam?Paste a suspicious message and get an AI verdict, a risk score, the exact words that give it away, what to do and a safe reply. Knows Dutch scams like bankhelpdeskfraude and WhatsApp fraud.AI & LLM Tools
- 22SQL Query Generator - From a Question to a QueryAsk a question in plain words, paste your table layout and get a SQL query for PostgreSQL, MySQL, SQLite, SQL Server or BigQuery with an explanation, assumptions and warnings.AI & LLM Tools
- 23System Prompt Builder - AI InstructionsBuild structured system prompts for ChatGPT, Claude, and other AI models. Model-specific export formats. Free prompt builder.AI & LLM Tools
BusinessTools
26 tools- 01Barcode Generator - Code 128, EAN-13, UPC-A & MoreGenerate barcodes in 6 formats: Code 128, Code 39, EAN-13, EAN-8, UPC-A, and ITF. Auto check digit, live preview, PNG and SVG download. Free, runs in your browser.Business Tools
- 02Break-Even Calculator - Units, Revenue & Contribution MarginFind your break-even point in units and revenue from fixed costs, price, and variable cost, plus profit at any volume. Free, instant, browser-based.Business Tools
- 03Budget Planner - Free Monthly Budget ToolPlan your monthly budget with income and expense tracking. Pie chart visualization, category breakdown, and savings goal tracking. All data saved locally.Business Tools
- 04Checklist Maker - Free Reusable ChecklistsBuild grouped checklists you can tick off, reset, and reuse, then export a print-friendly PDF or CSV. Free and saved in your browser.Business Tools
- 05Email Signature Generator - Free HTMLCreate professional HTML email signatures with name, title, photo, and social links. Multiple templates and styles. Free online tool.Business Tools
- 06Free QR Code Generator - URL, WiFi & MoreCreate free QR codes for URLs, text, WiFi, email, and phone numbers. Static codes that never expire. Works offline in your browser.Business Tools
- 07Habit Tracker - Build Daily StreaksTrack daily habits with a visual grid. Week and month views, streak counting, color-coded completion. All data saved locally in your browser.Business Tools
- 08Invoice Generator - Free PDF InvoicesCreate professional PDF invoices with line items, tax, and company details. Live preview, print or save as PDF. Free - works entirely in your browser.Business Tools
- 09Kanban Board - Free Drag & Drop Task BoardOrganize tasks with a simple drag-and-drop Kanban board. Three columns: To Do, In Progress, Done. Priority labels, card editing, and localStorage persistence. Free and private.Business Tools
- 10Margin Calculator - Gross Margin, Markup & ProfitCalculate gross margin, markup, and profit from any two of cost, revenue, and margin percentage. Free, instant, browser-based.Business Tools
- 11Meeting Planner - Time Zone Overlap FinderCompare working hours across 2 to 5 cities on a colored 24-hour strip and find the best shared meeting window. Free, instant, browser-based.Business Tools
- 12Overtime Calculator - Time and a Half & Double Time PayCalculate regular pay, overtime pay at 1.5x or any multiplier, and double-time pay from your hourly rate. Free, instant, browser-based.Business Tools
- 13Packing List - Free Trip Checklist MakerBuild a trip packing checklist grouped by category, tick items off, track packed progress, and print or export it. Free, saved in your browser.Business Tools
- 14Privacy Policy Generator - GDPR CompliantGenerate a GDPR-compliant privacy policy for your website or app. Customizable for cookies, analytics, and payments. Free template.Business Tools
- 15Project Planner - Free Task List & TrackerTrack project tasks with owner, status, priority, and due date, filter by status, and watch progress update live. Free, saved in your browser, export to CSV or Excel.Business Tools
- 16PTO Calculator - Accrual Rate & Balance ProjectionProject your paid time off balance from your accrual rate and pay frequency, including planned days off and a monthly forecast. Free and browser-based.Business Tools
- 17Purchase Order Generator - Free PO Templates in PDFCreate a professional purchase order with vendor details, line items, tax, and delivery date, then export to PDF, CSV, or Excel. Free, private, browser-based.Business Tools
- 18Quote Generator - Free Price Quotes in PDFBuild a professional price quote with line items, tax, and a valid-until date, then export to PDF, CSV, or Excel. Free, private, saved in your browser.Business Tools
- 19Random Group Generator - Split Names into TeamsSplit a list of names into balanced random groups by group count or group size. Free, instant, browser-based.Business Tools
- 20Receipt Generator - Create & Print Receipts FreeGenerate professional receipts with line items, tax calculation, and company details. Print directly or save as PDF. Free and easy to use.Business Tools
- 21Rent Receipt Generator - Free Proof of Rent PaymentCreate a rent payment receipt with landlord, tenant, property, and period covered, then export to PDF or CSV. Free, private, saved in your browser.Business Tools
- 22Resume Builder - Free CV Maker with PDF ExportBuild a clean, one-column resume and download it as a polished, watermark-free PDF. Free, saved in your browser.Business Tools
- 23Rubric Maker - Build Assessment Rubrics OnlineBuild a criteria-by-levels grading rubric with editable descriptions and points, then print it or copy it as markdown. Free and browser-based.Business Tools
- 24Seating Chart Generator - Random Classroom SeatsGenerate a random classroom seating chart from your roster, swap seats, and print it. The roster never leaves your browser.Business Tools
- 25Timesheet Calculator - Weekly Work Hours & OvertimeCalculate daily and weekly work hours from start time, end time, and breaks, with overtime and optional gross pay. Free, instant, browser-based.Business Tools
- 26VAT Number Checker - EU VAT Format ValidationCheck EU VAT number formats (plus GB and CH), see country and normalized form, and validate up to 100 numbers in bulk with CSV export. Free, browser-based.Business Tools
CountrySpecific Tools
22 tools- 0130% Ruling Calculator - Dutch Expat Tax Benefit 2026Calculate your tax-free allowance under the Dutch 30% ruling with 2026 rules: salary norms, WNT cap, and net advantage. Free, instant, browser-based.🇳🇱 Netherlands
- 02AOW Age Calculator - Dutch State Pension DateCalculate your Dutch AOW (state pension) age and start date from your birth date. Official SVB table, with fixed and expected ages clearly separated.🇳🇱 Netherlands
- 03BRP Test Data Generator - Dutch Person RecordsGenerate fictional BRP persoonslijst test data: person, parents, partnership, death, residence and children. Map the output onto the header row of the system you feed. Valid BSN and A-nummer.🇳🇱 Netherlands
- 04Bruto/Netto Calculator - Dutch Salary 2026Calculate Dutch gross to net salary with 2026 tax brackets, AHK, and employment tax credit. Instant results. Free online tool.🇳🇱 Netherlands
- 05BTW Calculator - Dutch VAT (21% & 9%)Calculate Dutch VAT (BTW) instantly. Convert between excl. and incl. amounts for 21% and 9% rates. Free online calculator.🇳🇱 Netherlands
- 06Dutch Doorstroomtoets Guide - Score to SchooladviesConvert a doorstroomtoets standaardscore into the matching toetsadvies and secondary school level, with an explainer of the advies process. Free, browser-based.🇳🇱 Netherlands
- 07Dutch Exam Grade Calculator - Eindexamen SE/CE Pass CheckCalculate Dutch eindexamen final grades from SE and CE marks and check the havo/vwo slaag-zakregeling. Free, instant, browser-based.🇳🇱 Netherlands
- 08Dutch Holiday Allowance Calculator - Vakantiegeld Gross and NetCalculate your Dutch 8% holiday allowance (vakantiegeld) and estimate the net payout after the bijzonder tarief. Free, instant, browser-based.🇳🇱 Netherlands
- 09Dutch Mileage Calculator - Kilometervergoeding 2026Calculate your untaxed Dutch travel reimbursement per week, month, and year at the 2026 rate of EUR 0.25 per km. Free, instant, browser-based.🇳🇱 Netherlands
- 10Dutch Notice Period Calculator - Opzegtermijn and Last Working DayCalculate the statutory Dutch notice period for employee or employer and the exact date your contract ends. Free, instant, browser-based.🇳🇱 Netherlands
- 11Dutch School Holidays - Schoolvakanties 2026-2027 per RegionAll Dutch school holiday dates (schoolvakanties) for regio noord, midden, and zuid with a countdown to the next break. Free and browser-based.🇳🇱 Netherlands
- 12Dutch Severance Calculator - Transitievergoeding 2026Calculate your statutory Dutch transition payment: 1/3 monthly salary per year of service, pro rata by day, with the 2026 cap. Free and browser-based.🇳🇱 Netherlands
- 13Dutch Student Finance Calculator - Studiefinanciering 2026Estimate your monthly DUO studiefinanciering: basisbeurs, aanvullende beurs, and student travel product, with official 2026 amounts. Free and instant.🇳🇱 Netherlands
- 14Dutch Working Days Calculator - Werkdagen Between Two DatesCount working days between two dates excluding weekends and Dutch public holidays, with the full holiday list per year. Free and browser-based.🇳🇱 Netherlands
- 15Erfbelasting Calculator 2026 - Dutch Inheritance TaxCalculate Dutch inheritance tax for 2026 with official exemptions per heir, from EUR 2,769 for a friend to EUR 828,035 for a partner.🇳🇱 Netherlands
- 16Freelance Rate Calculator - Dutch ZZP Hourly RateCalculate the hourly rate you need as a Dutch freelancer to hit your target net income, with 2026 ZZP tax rules and a salary comparison. Free and browser-based.🇳🇱 Netherlands
- 17Hypotheek Calculator - Maandlasten BerekenenCalculate Dutch mortgage payments, interest, and total cost. Compare annuity vs linear repayment. Free online hypotheek calculator.🇳🇱 Netherlands
- 18Schenkbelasting Calculator 2026 - Dutch Gift TaxCalculate Dutch gift tax for 2026 with official Belastingdienst rates and exemptions. See the tax, the exemption applied, and what the recipient keeps.🇳🇱 Netherlands
- 19Test BSN Generator - Dutch Elfproef ValidGenerate valid Dutch BSN test numbers that pass the elfproef (11-check). Perfect for development and testing. Free online tool.🇳🇱 Netherlands
- 20Test Document Number Generator - Dutch IDsGenerate Dutch test document numbers for ID cards, passports, and driving licenses. Valid format for development and testing.🇳🇱 Netherlands
- 21UPA File Generator - Dutch Pension Test DataGenerate UPA (Uniforme Pensioenaangifte) XML test files for Dutch pension funds. UPA 2024, 2025 and 2026, life events, multiple schemes, deliberate defects, up to 10,000 employments per period, plus a participant overview as CSV or Excel.🇳🇱 Netherlands
- 22WW Duration Calculator - Dutch Unemployment BenefitEstimate how many months of Dutch WW benefit your employment history gives you, including notional years for people born in 1979 or earlier.🇳🇱 Netherlands
Date& Time Tools
16 tools- 01Age Calculator - Exact Years, Months & DaysCalculate your exact age in years, months, and days from your date of birth. See total days alive and next birthday countdown.Date & Time Tools
- 02Countdown Timer - Live Event Countdown ClockSet a target date and time to see a live countdown with animated flip-clock display. Add an event name, share the link, or go full screen for presentations.Date & Time Tools
- 03Date Calculator - Add Days & Find DifferencesCalculate the difference between two dates or add/subtract days from any date. Shows years, months, and days. Free online tool.Date & Time Tools
- 04Date Difference Calculator - Days BetweenCalculate the exact difference between two dates in years, months, days, weeks, and hours. Includes countdown feature. Free online tool.Date & Time Tools
- 05Due Date Calculator - Pregnancy Timeline, FreeFree browser-based due date calculator from last period or conception date, showing gestational age, trimester, and key pregnancy milestone dates.Date & Time Tools
- 06Meal Planner - Weekly Meal Plan & Grocery ListPlan breakfast, lunch, dinner, and snacks for the week and get an automatic grocery list from your ingredients. Free, browser-based, print or export.Date & Time Tools
- 07Military Time Converter - 24-Hour and 12-Hour TimeConvert between AM/PM and 24-hour military time in both directions, with a full reference chart and spoken phrases. Free, instant, browser-based.Date & Time Tools
- 08Online Stopwatch - Lap Times & PrecisionPrecise online stopwatch with lap times. Start, stop, and reset with one click. Free, works in any browser - no install needed.Date & Time Tools
- 09Ovulation Calculator - Fertile Window, FreeFree browser-based ovulation calculator showing your fertile window, ovulation day, and next period across three cycles from two simple inputs.Date & Time Tools
- 10Pomodoro Timer - Free Online Focus TimerStay focused with the Pomodoro technique. 25 min work, 5 min break cycles with notifications. Free online timer - no install needed.Date & Time Tools
- 11Public Holidays Calendar - 22 CountriesBrowse public holidays and special awareness days for 22 countries. Interactive calendar with algorithmic Easter calculation. Works for any year - past and future.Date & Time Tools
- 12Study Planner - Free Revision TimetablePlan revision by subject and exam date, track hours and progress, and export to CSV or Excel. Free and saved in your browser.Date & Time Tools
- 13Study Timer - Pomodoro Focus SessionsTimed study sessions with 25/5 and 50/10 presets, breaks, a daily session counter, and a tab title countdown. Free and browser-based.Date & Time Tools
- 14Time Zone Converter - World Clock FreeConvert time between different time zones instantly. Compare multiple zones at once. Free online world clock and converter.Date & Time Tools
- 15Week Number Calculator - ISO 8601 & US WeeksCalculate ISO 8601, US, and UK/EU week numbers for any date. Understand how different countries number weeks in the year.Date & Time Tools
- 16Weekly Planner - Free Printable Week SchedulePlan your whole week in a live 7-day grid with your own time slots, then print it or export a CSV. Free, saved in your browser.Date & Time Tools
Design& CSS Tools
30 tools- 01Code to Image - Beautiful Code ScreenshotsTurn code snippets into beautiful, shareable images with syntax highlighting. Custom themes, backgrounds, and window styles. Free.Design & CSS Tools
- 02Color Blindness Simulator - Test AccessibilitySee how colors and images appear to people with color vision deficiencies. Simulate protanopia, deuteranopia, tritanopia, and achromatopsia. Essential for accessible design.Design & CSS Tools
- 03Color Contrast Checker - WCAG AccessibilityCheck color combinations against WCAG 2.1 AA and AAA accessibility standards. See contrast ratio and pass/fail status. Free tool.Design & CSS Tools
- 04Color Converter - HEX, RGB, HSL & CMYKConvert colors between HEX, RGB, HSL, and CMYK instantly. Live preview, one-click copy. Free tool for designers and developers.Design & CSS Tools
- 05Color Harmony Finder - 7 Harmony TypesGenerate color harmonies from any base color. Complementary, analogous, triadic, and more. Export as CSS variables. Free tool.Design & CSS Tools
- 06Color Palette Generator - Harmonious SchemesGenerate harmonious color palettes based on color theory. Copy HEX codes instantly. Free design tool for beautiful color combinations.Design & CSS Tools
- 07Color Picker - HEX, RGB & HSL ValuesPick colors from a visual spectrum and get HEX, RGB, and HSL values. Save history, view harmonies. Free online color picker.Design & CSS Tools
- 08CSS Animation Generator - Visual BuilderBuild CSS keyframe animations visually with live preview and copy-ready code. Customize timing, easing, and properties. Free tool.Design & CSS Tools
- 09CSS Border Radius Generator - Free Online ToolGenerate border-radius CSS visually with four corner sliders or the advanced 8-value blob mode. Free browser-based tool with instant copy-ready output.Design & CSS Tools
- 10CSS Box Shadow Generator - Visual EditorCreate and preview CSS box shadows with intuitive sliders. Multiple layers, inset shadows, live preview. Copy CSS with one click.Design & CSS Tools
- 11CSS Flexbox Generator - Visual BuilderBuild CSS flexbox layouts visually with live preview and ready-to-copy code export. Free online flexbox playground.Design & CSS Tools
- 12CSS Gradient Generator - Visual Editor FreeCreate beautiful linear and radial CSS gradients with a visual editor. Copy ready-to-use CSS code. Free online gradient builder.Design & CSS Tools
- 13CSS Grid Generator - Drag & Drop BuilderBuild CSS grid layouts visually with drag-to-resize columns and rows. Live preview with ready-to-copy CSS. Free online tool.Design & CSS Tools
- 14Curated Color Palettes - 30+ HandpickedBrowse 30+ handpicked color palettes for design inspiration. Filter by mood (warm, cool, pastel). Copy hex codes or export as CSS.Design & CSS Tools
- 15Device Mockup Generator - Free & InstantPlace screenshots into realistic device frames: iPhone, MacBook, iPad, and more. Custom backgrounds. Download as PNG. Free tool.Design & CSS Tools
- 16Favicon Generator - Create Icons from TextCreate favicons from text with custom colors and shapes. Download as PNG in multiple sizes (16x16 to 512x512). Free online tool.Design & CSS Tools
- 17Font Pairing Suggester - Google Fonts FreeDiscover beautiful Google Fonts pairings with live preview. Browse curated heading and body font combinations. Copy CSS instantly.Design & CSS Tools
- 18Glassmorphism Generator - Frosted Glass CSSGenerate CSS for frosted glass effects with live preview and presets. Adjust blur, transparency, and border. Copy CSS instantly.Design & CSS Tools
- 19Image Color Extractor - Get Palette FreeExtract dominant colors and palettes from any image. Get HEX and RGB values instantly. Export as CSS variables. Free and private.Design & CSS Tools
- 20Neumorphism Generator - Soft UI CSS FreeGenerate CSS for soft UI neumorphic elements with live preview. Adjust size, radius, and colors. Copy CSS with one click. Free.Design & CSS Tools
- 21Noise & Pattern Generator - SVG BackgroundsGenerate SVG noise patterns, dot grids, lines, crosshatch, and waves. Customize density, colors, and opacity. Export as SVG or CSS background.Design & CSS Tools
- 22Online Whiteboard - Free Drawing & Sketch ToolDraw, sketch, and annotate with pen, eraser, and shapes. Undo/redo, color picker, stroke width, and PNG export. Touch support for tablets.Design & CSS Tools
- 23Pixel Art Editor - Free Online Drawing ToolCreate pixel art in your browser with 8x8, 16x16, or 32x32 grids. Color palette, fill bucket, eraser, undo, and PNG export. Free online pixel art maker.Design & CSS Tools
- 24Random Color Generator - Palettes with HEX, RGB, HSLGenerate random color palettes with HEX, RGB, and HSL values. Lock colors, check contrast ratios, and copy codes with one click. Free design tool.Design & CSS Tools
- 25Screen Ruler - Measure Pixels on ScreenA pixel-perfect ruler for measuring distances on screen. Supports px, em, and rem units. Add guides, measure between points, and toggle crosshairs.Design & CSS Tools
- 26SVG Pattern Generator - Background PatternsCreate repeatable SVG background patterns. 8 presets, adjustable size, color, and opacity. Copy as SVG or CSS. Free design tool.Design & CSS Tools
- 27Tint & Shade Generator - Color VariationsGenerate tints and shades from any base color. Full palette from light to dark. Click to copy hex values. Free design tool.Design & CSS Tools
- 28Typography Scale Calculator - CSS ExportGenerate harmonious type scales for web design. Popular ratios with live preview and CSS custom properties export. Free design tool.Design & CSS Tools
- 29vCard QR Code Generator - Free & PrivateCreate a vCard QR code that saves your contact details straight into any phone. Free browser-based generator with size and error correction options.Design & CSS Tools
- 30Web Font Converter - @font-face CSS FreeLoad and preview web fonts (TTF, OTF, WOFF, WOFF2). Generate @font-face CSS and base64 data URIs. Free browser-based tool.Design & CSS Tools
DeveloperTools
56 tools- 01.htaccess Redirect Generator - Apache & NginxGenerate 301 and 302 redirect rules for Apache .htaccess and Nginx, with HTTPS, www, and trailing-slash templates. Free and fully browser-based.Developer Tools
- 02API Request Builder - cURL, Python & JSBuild API requests for OpenAI, Anthropic, and Google AI. Generate ready-to-use code in cURL, Python, and JavaScript. Free tool.Developer Tools
- 03Archive Converter and Extractor - ZIP, 7z, RAR, TAR, GZOpen ZIP, 7z, RAR, TAR, TAR.GZ, GZ, BZ2 and XZ archives in your browser, download the files, convert between ZIP, 7z, TAR and TAR.GZ, or create a new archive. Nothing is uploaded.Developer Tools
- 04Base64 Encoder & Decoder - Free OnlineEncode text to Base64 or decode Base64 back to text instantly. Full Unicode support. Free, private, browser-based.Developer Tools
- 05Binary Translator - Text to Binary & Binary to TextConvert text to binary and binary back to text. ASCII and UTF-8 support. Visual binary display with character breakdown table. Copy results instantly.Developer Tools
- 06Browser Compatibility Checker - Can I UseCheck browser support for CSS, JavaScript, HTML, and Web API features. Filter by support level across Chrome, Firefox, Safari, and Edge.Developer Tools
- 07Chmod Calculator - Unix File PermissionsCalculate Unix file permissions visually. Convert between symbolic and numeric (octal) notation. Free tool for developers and sysadmins.Developer Tools
- 08Cron Expression Builder - Visual & FreeBuild cron expressions visually with human-readable output and next run preview. No syntax memorization needed. Free online tool.Developer Tools
- 09Cron Expression Parser - Human-ReadableParse and explain cron expressions in plain English. See next run times and validate your schedule. Free online cron debugger.Developer Tools
- 10CSS Minifier - Reduce CSS Size InstantlyMinify CSS code by removing whitespace, comments, and unnecessary characters. See exact savings. Free browser-based tool.Developer Tools
- 11CSV to JSON Converter - Auto-Detect FormatConvert CSV data to JSON format instantly. Auto-detects delimiters and headers. Free, private, browser-based - no upload needed.Developer Tools
- 12CSV to Markdown Table Converter - Free & PrivateConvert CSV to a Markdown table with per column alignment and RFC 4180 quoted field support. Free, browser based, nothing is uploaded to a server.Developer Tools
- 13CSV/Excel Viewer - Sortable Table FreeView CSV and TSV files as interactive, sortable tables in your browser. Search rows, sort columns. Free - no upload to any server.Developer Tools
- 14Diff Checker - Compare Text Side by SideCompare two texts and see differences highlighted line by line. Color-coded additions and deletions. Free, private, no upload needed.Developer Tools
- 15DNS Lookup - A, MX, TXT, NS & MoreQuery A, AAAA, MX, TXT, NS, CNAME, SOA, and CAA records for any domain via DNS-over-HTTPS. Free browser-based DNS lookup with a query-all mode.Developer Tools
- 16Domain Checker - Check Domain Availability InstantlyFree domain checker to search domain name availability across .com, .net, .org, .io and 16 TLDs. Check if a domain is available and find the perfect domain name for your website.Developer Tools
- 17Email Validator - Syntax and Typo CheckValidate email address syntax, catch typos like gmial.com, and flag disposable addresses. Check one address or a whole list in your browser.Developer Tools
- 18Fake Data Generator - Names, Emails, AddressesGenerate realistic fake data for testing: names, emails, addresses, phones, companies. Bulk generation up to 100 rows. Export as JSON or CSV. EN, NL, DE, FR locales.Developer Tools
- 19Generate .env.example Files - Free & PrivatePaste a .env file and instantly get a .env.example with secret values stripped. Free, browser-based, and private - credentials never leave your device.Developer Tools
- 20HTML Entity Encoder & Decoder - FreeEncode special characters to HTML entities or decode entities back to text. Common entities reference included. Free online tool.Developer Tools
- 21HTML Minifier - Reduce File Size InstantlyMinify HTML by removing comments, whitespace, and unnecessary characters. See exact savings. Free browser-based tool.Developer Tools
- 22HTML to JSX Converter - Free & InstantConvert HTML to valid React JSX instantly: className, camelCase attributes, style objects, and self-closed tags. Free, browser-based, and private.Developer Tools
- 23HTML to Markdown Converter - Instant & FreeConvert HTML code to clean Markdown syntax. Handles headings, lists, links, tables, code blocks. Free browser-based converter.Developer Tools
- 24HTTP Headers Checker - Free Response ViewerSee the status code, redirect chain and every response header for any URL, plus a free pass or fail audit of the six key security headers.Developer Tools
- 25HTTP Status Codes - Complete ReferenceComplete reference of all HTTP status codes with descriptions and common use cases. Searchable and filterable. Free developer resource.Developer Tools
- 26Image to Base64 Converter - Free Online EncoderConvert any image to Base64 string. Get raw Base64, Data URI, HTML img tag, or CSS background-image. Drag & drop supported.Developer Tools
- 27IP Address Lookup - Location & ISP DetailsLook up IP address details: location, ISP, timezone, and organization. Includes subnet calculator and private IP checker. Free tool.Developer Tools
- 28JavaScript Minifier - Reduce JS Size FreeMinify JavaScript code by removing whitespace, comments, and shortening variable names. See exact savings. Free online tool.Developer Tools
- 29JSON Formatter & Validator - Instant ResultsFormat, validate, and minify JSON with instant error highlighting. Pinpoints syntax errors. Free, private, browser-based.Developer Tools
- 30JSON Path Finder - Interactive JSONPath ExplorerPaste JSON, click on any value to see its JSONPath expression. Interactive tree view, path copying, nested object and array support. Free developer tool.Developer Tools
- 31JSON Schema Validator - Free Online ToolValidate JSON data against a JSON Schema instantly. Perfect for AI function calling and API validation. Free, browser-based.Developer Tools
- 32JSON to CSV Converter - Export InstantlyConvert JSON arrays to CSV format with automatic header detection. Download as CSV file. Free, browser-based - no upload needed.Developer Tools
- 33JSON to TypeScript - Interface GeneratorConvert JSON objects to TypeScript interfaces instantly. Supports nested objects, arrays, optional and readonly properties. Free online tool.Developer Tools
- 34JSON to XML Converter - Instant & FreeConvert JSON data to XML format with proper indentation and escaping. Free, browser-based converter - no upload needed.Developer Tools
- 35JSON to YAML Converter - Free & PrivateConvert JSON to YAML in your browser with correct indentation, smart quoting and block scalars for multi line text. Free, private, nothing uploaded.Developer Tools
- 36JSON Tree Viewer - Expandable VisualizerVisualize JSON data as an expandable, collapsible tree. Search keys and values, copy JSON paths. Free online JSON explorer.Developer Tools
- 37JWT Decoder - Inspect Tokens InstantlyDecode and inspect JSON Web Tokens instantly. View header, payload, and expiration. Free, private - your tokens stay in your browser.Developer Tools
- 38Markdown Editor - Live Preview & ExportSplit-pane Markdown editor with live HTML preview. Write, preview, and export Markdown instantly. Free online editor - works instantly in your browser.Developer Tools
- 39PX to REM Converter - CSS Unit CalculatorConvert pixels to REM and REM to pixels with custom base font size. Quick reference table with visual preview. Free CSS unit converter.Developer Tools
- 40Regex Tester - Live Matching & HighlightingTest regular expressions with live matching and highlighting. Supports all flags and capture groups. Free online regex debugger.Developer Tools
- 41Responsive Design Tester - Multi-DevicePreview any URL at multiple screen sizes simultaneously. Test responsive layouts on mobile, tablet, and desktop. Free online tool.Developer Tools
- 42Spreadsheet Merge and Split - Combine or Split CSV and Excel FilesMerge several CSV or Excel files into one, matching columns by name, or split one file into parts by row count or column value. Runs in your browser, nothing uploaded.Developer Tools
- 43SQL Formatter - Beautify Queries OnlineFormat SQL queries with proper indentation and keyword highlighting. Supports all major SQL dialects. Free online SQL beautifier.Developer Tools
- 44TSV to CSV Converter - Free & PrivateConvert tab separated data to RFC 4180 CSV with proper quoting, a semicolon option for Excel and a UTF-8 BOM toggle. Free and fully browser based.Developer Tools
- 45Unix Timestamp Converter - Date & TimeConvert between Unix timestamps and human-readable dates instantly. Supports seconds and milliseconds. Free developer tool.Developer Tools
- 46URL Encoder & Decoder - Free Online ToolEncode or decode URLs and special characters for web use. Instant results, browser-based. Essential tool for web developers.Developer Tools
- 47URL Slug Generator - SEO-Friendly SlugsGenerate SEO-friendly URL slugs from any text. Handles accents, special characters, and Unicode. Free instant tool.Developer Tools
- 48User Agent Parser - Browser & OS LookupParse any user agent string to identify browser, version, engine, OS, and device type, including bots. Free, instant, and fully browser-based.Developer Tools
- 49UUID & ULID Generator - Bulk & SecureGenerate UUIDs (v4) and ULIDs in bulk. Cryptographically secure, browser-based. Generate up to 50 IDs at once. Free online tool.Developer Tools
- 50Video and Audio Converter - MP4, WebM, MP3, GIF, Trim, CompressConvert MOV, AVI, MKV and WebM to MP4, extract MP3 or WAV, compress a video, trim a clip, make a GIF, remove silence and normalise loudness. FFmpeg runs in your browser, nothing is uploaded.Developer Tools
- 51WHOIS Lookup - Domain Info & RegistrarLook up domain registration details: registrar, registration and expiry dates, name servers, and status. Free online WHOIS tool.Developer Tools
- 52XML Formatter - Prettify & Validate FreeFormat and prettify XML with proper indentation and syntax validation. Customizable indent size. Free online XML beautifier.Developer Tools
- 53XML to JSON Converter - Free & PrivateConvert XML and SOAP responses to JSON in your browser. Configurable attribute prefix, namespace handling and arrays for repeated tags. Free and private.Developer Tools
- 54YAML ↔ JSON Converter - Instant & FreeConvert between YAML and JSON formats instantly. Bidirectional conversion with syntax validation. Free online developer tool.Developer Tools
- 55YAML to JSON Converter - Free & PrivateConvert YAML to JSON online. Nested maps, sequences, inline flow style, comments and block scalars, with line numbered errors. Free and browser based.Developer Tools
- 56ZIP Extractor - Open ZIP Files OnlineOpen and extract ZIP files directly in your browser: list contents, preview text and images, download files. Free and private - nothing is uploaded.Developer Tools
Fun& Games
14 tools- 01Color Memory Game - Simon Says Brain TrainerTest your memory with this Simon Says-style color sequence game. Watch, repeat, and challenge yourself with increasing difficulty. High score tracking included.Fun & Games
- 02Dog Age Calculator - Dog Years to Human YearsConvert dog years to human years with the modern research formula, the classic 7x rule, and a size-based chart. Works for cats too. Free and browser-based.Fun & Games
- 03Fortune Cookie - Crack Open Your FortuneClick to crack open a virtual fortune cookie and reveal your fortune. 100+ inspirational, funny, and wise fortunes with lucky numbers. Share your fortune with friends.Fun & Games
- 04Love Calculator - Name Compatibility TestEnter two names and get a compatibility percentage with a playful verdict. Deterministic, shareable, just for fun. Free and browser-based.Fun & Games
- 05Magic 8-Ball - Ask a Question, Get an AnswerShake the virtual Magic 8-Ball for instant answers to your yes-or-no questions. Classic 20 responses, animated shake effect, and question history. Free browser game.Fun & Games
- 06Name Generator - Characters, Businesses, Bands & MoreGenerate random names for characters, businesses, bands, pets, babies, and gamertags. Fantasy, sci-fi, modern, and medieval themes. Save favorites locally.Fun & Games
- 07Number Guessing Game - Higher or LowerGuess the secret number with higher/lower hints. Multiple difficulty levels from 1-100 to 1-10000. Track your best scores and attempt counts per difficulty.Fun & Games
- 08Random Name Picker - Spin the WheelPaste a list of names and spin an animated wheel to pick a random winner. Free, browser-based, list stays on your device.Fun & Games
- 09Random Picker - Free List Winner GeneratorPick random winners from any list for giveaways and raffles. Weighted entries, spin animation, and pick history. Free browser-based tool, names stay private.Fun & Games
- 10Reaction Time Test - How Fast Are You?Measure your reaction time in milliseconds. Wait for the green screen, click as fast as you can. Track your average, best, and worst times against the human average of 250ms.Fun & Games
- 11Rock Paper Scissors - Play Against the ComputerClassic Rock Paper Scissors game with animated hand gestures. Play best-of-3, 5, or 10 rounds. Includes extended Lizard Spock mode and win/loss statistics.Fun & Games
- 12Text to ASCII Art Generator - Large Text Banner MakerConvert text into large ASCII art banners using multiple font styles. Standard, banner, block, slant, and more. Copy to clipboard instantly. Free online tool.Fun & Games
- 13Trivia Quiz - Test Your Knowledge OnlineChallenge yourself with multiple-choice trivia questions across science, history, geography, pop culture, and tech. Timed questions, score tracking, and high scores.Fun & Games
- 14Would You Rather - Fun Questions & Voting GamePlay Would You Rather with hundreds of questions across categories: funny, serious, impossible, food, and travel. Vote, see percentages, and add your own questions.Fun & Games
ImageTools
32 tools- 01App Icon Generator - iOS, Android & FaviconGenerate all iOS, Android, and favicon app icon sizes from one square image. Free browser-based tool where your artwork is never uploaded to a server.Image Tools
- 02AVIF and JPEG XL Converter - Modern Image Formats in Your BrowserConvert PNG, JPEG, WebP, GIF, BMP, AVIF and JPEG XL to AVIF, JPEG XL, WebP, JPEG or PNG with a quality slider and lossless mode. The Squoosh encoders as WebAssembly, on your device, up to 50 images at once.Image Tools
- 03AVIF to JPG Converter - Free & PrivateConvert AVIF images to JPG free in your browser. Fixes files that older photo viewers, print shops and upload forms refuse to open. Nothing uploaded.Image Tools
- 04AVIF to PNG Converter - Free & PrivateConvert AVIF to PNG free and browser-based. Get a lossless copy you can edit, with transparency kept intact. Up to 20 files, no upload.Image Tools
- 05BMP to JPG Converter - Free & PrivateConvert BMP to JPG free and browser-based. Turns huge uncompressed Windows bitmaps into files small enough to email. Up to 20 at once, nothing uploaded.Image Tools
- 06Bulk Image Resizer - Batch Resize FreeResize multiple images at once with presets for social media, web, or custom sizes. Download all as ZIP. Free, browser-based.Image Tools
- 07Circle Crop Image - Free Round Photo CropperCrop photos into a perfect circle with a transparent background. Drag, zoom, and download as PNG in 400, 800, or original size. Free and browser-based.Image Tools
- 08Collage Maker - Free Grid Photo CollageCombine photos into a grid collage with layouts up to 3x3, gap and corner controls, and social media size presets. Free browser-based collage maker.Image Tools
- 09Compress Images Online - No Upload RequiredResize and compress JPG, PNG, and WebP images directly in your browser. Reduce file size up to 80% with no quality loss. Free and private.Image Tools
- 10Flip Image Online - Free Mirror ToolFlip images horizontally, vertically, or both with instant preview and batch support for 20 photos. Free browser-based mirror tool with PNG or JPEG export.Image Tools
- 11Free Stock Photo Search - 4 Sites at OnceSearch Unsplash, Pexels, Pixabay, and StockCake in one place. Find royalty-free images for any project. Free stock photo finder.Image Tools
- 12GIF to PNG Converter - Free & PrivateConvert GIF to PNG free in your browser. Escape the 256 colour limit or pull the first frame out of an animation. No upload, no watermark.Image Tools
- 13HEIC to JPG Converter - Convert iPhone Photos OnlineConvert HEIC and HEIF photos from your iPhone to JPG, up to 20 at once. Free, private, and browser-based: photos never leave your device.Image Tools
- 14Image Cropper - Aspect Ratio Presets FreeCrop images with aspect ratio presets (16:9, 1:1, passport) directly in your browser. No upload needed. Free online tool.Image Tools
- 15Image Format Converter - PNG, JPEG & WebPConvert images between PNG, JPEG, and WebP formats with quality control. Free browser-based tool - no upload, instant results.Image Tools
- 16Image Metadata Viewer - EXIF & GPS DataView EXIF data, camera info, GPS coordinates, and AI generation markers from any image. Free, private - runs in your browser.Image Tools
- 17Image Resizer - Exact Dimensions FreeResize images to exact dimensions or percentages. Maintains quality with browser-based processing. Free, private - no upload needed.Image Tools
- 18Image to Text (OCR) - Free & PrivateExtract text from images using OCR. Supports PNG, JPG, WebP, and BMP. Runs entirely in your browser - no upload to any server.Image Tools
- 19Image Watermark - Add Text Overlay FreeAdd text watermarks to images directly in your browser. Custom font, color, opacity, and position. No upload needed. Free tool.Image Tools
- 20JPG to PNG Converter - Free & PrivateConvert JPG and JPEG photos to PNG in your browser. Batch of 20 files, no upload, no watermark. Free lossless conversion that keeps your files private.Image Tools
- 21JPG to WebP Converter - Free & PrivateConvert JPG photos to WebP free in your browser and cut 25 to 35 percent off page weight. Batch of 20, quality control, browser-based, no upload.Image Tools
- 22Metadata Remover - Strip EXIF, GPS and Author Data from FilesRemove hidden metadata from JPEG, PNG, WebP, PDF, Word, Excel and PowerPoint files: EXIF, GPS, XMP, author, company and editing time. Up to 20 files, cleaned in your browser, nothing uploaded.Image Tools
- 23PNG to JPG Converter - Free & PrivateConvert PNG images to JPG free in your browser. Shrink oversized screenshots, pick a background colour for transparent pixels, nothing is uploaded.Image Tools
- 24PNG to WebP Converter - Free & PrivateConvert PNG to WebP free in your browser and keep full transparency. Cut cutouts and UI assets by 60 to 80 percent, batch of 20, nothing uploaded.Image Tools
- 25RAW to JPG Converter - CR2, NEF, ARW, DNG and MoreConvert camera RAW files (Canon CR2 and CR3, Nikon NEF, Sony ARW, Fujifilm RAF, DNG and more) to JPG, PNG or WebP in your browser with LibRaw. Full decode with exposure and white balance, or the embedded preview in an instant. Nothing uploaded.Image Tools
- 26Rotate Image Online - Free Any-Angle RotationRotate images by 90, 180, or any custom angle with auto-resizing canvas and background color choice. Free browser-based tool with PNG and JPEG export.Image Tools
- 27Screenshot Beautifier - Free & PrivateAdd beautiful backgrounds, padding, shadows, and browser frames to your screenshots. Like shots.so but fully client-side. Free tool.Image Tools
- 28SVG Optimizer - Minify & Clean SVG FilesOptimize and minify SVG code by removing metadata, editor data, and unnecessary attributes. See file size savings. Free tool.Image Tools
- 29SVG to PNG Converter - Free & PrivateConvert SVG to PNG free in your browser at any width you choose. For Instagram, print shops and every platform that rejects vector uploads. No upload.Image Tools
- 30WebP to JPG Converter - Free & PrivateConvert WebP images to JPG free in your browser so old software, print shops and upload forms accept them. Batch of 20, no upload.Image Tools
- 31WebP to PNG Converter - Free & PrivateConvert WebP to lossless PNG free in your browser, transparency included. Get an editable master for Figma, GIMP or Affinity with nothing uploaded.Image Tools
- 32YouTube Thumbnail Downloader - All Sizes FreeDownload YouTube video thumbnails in all available sizes. Paste any YouTube URL or video ID. Free, no API key needed.Image Tools
Math& Finance Tools
66 tools- 01Appliance Energy Cost Calculator - kWh and Cost per YearCalculate what any appliance costs to run: wattage and usage to kWh and cost per day, month, and year, with presets for common devices. Free and instant.Math & Finance Tools
- 02Area Converter - m², ft², Acres & HectaresFree browser-based area converter between square meters, feet, yards, inches, miles, kilometers, hectares, and acres, all shown at once as you type.Math & Finance Tools
- 03Aspect Ratio Calculator - Resize ProportionallyCalculate aspect ratios and resize dimensions while maintaining proportions. Common presets for video, photo, and design. Free online.Math & Finance Tools
- 04Average Calculator - Mean, Median, Mode, RangePaste numbers and get mean, median, mode, range, sum, plus geometric and harmonic means. Free, instant, browser-based.Math & Finance Tools
- 05BMI Calculator - Free Body Mass Index ToolCalculate your Body Mass Index based on height and weight. See your BMI category instantly. Free online health calculator.Math & Finance Tools
- 06BMR Calculator - Mifflin-St Jeor & Harris-BenedictCalculate your basal metabolic rate with both major formulas side by side, plus a TDEE table for every activity level. Free, instant, browser-based.Math & Finance Tools
- 07Body Fat Calculator - US Navy MethodEstimate body fat percentage from tape measurements with the US Navy formula, including category table and lean mass. Free, instant, browser-based.Math & Finance Tools
- 08Calorie Calculator - BMR & TDEECalculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). See calories for weight loss, maintenance, and weight gain.Math & Finance Tools
- 09Coin Flip - Heads or Tails OnlineFlip a virtual coin with realistic animation. Track statistics, streaks, and flip history. Fair, cryptographically random, and instant. Free online coin flipper.Math & Finance Tools
- 10Commission Calculator - Flat & TieredCalculate sales commission and net proceeds with a flat rate or up to three tiers with breakdown. Free browser-based calculator for reps and managers.Math & Finance Tools
- 11Compound Interest Calculator - Free & VisualCalculate compound interest on savings and investments. Visual growth chart, year-by-year breakdown, and formula explained. Free tool.Math & Finance Tools
- 12Cooking Measurement Converter - Cups, Grams, ml, SpoonsConvert cups, tablespoons, teaspoons, ml, fl oz, and grams with correct per-ingredient densities. Free, instant, browser-based.Math & Finance Tools
- 13Currency Converter - Live ECB Rates, FreeFree browser-based currency converter with live ECB exchange rates for 30+ currencies. Swap pairs, see the rate date, and convert amounts instantly.Math & Finance Tools
- 14Debt Payoff Calculator - Snowball vs AvalancheCompare the snowball and avalanche debt strategies: months to debt-free, total interest, and payoff order for your debts. Free and browser-based.Math & Finance Tools
- 15Decision Wheel - Spin to DecideEnter your options and spin the wheel to make a random decision. Colorful animated wheel with presets and localStorage. Free decision maker tool.Math & Finance Tools
- 16Dice Roller - Roll Any Dice InstantlyRoll virtual dice for board games, RPGs, and probability experiments. Supports d4, d6, d8, d10, d12, d20, and d100. Cryptographically random, free, and browser-based.Math & Finance Tools
- 17Discount Calculator - Sale Price & SavingsCalculate sale price from discount percentage, stack multiple discounts, or find the discount rate. Add tax after discount. Free tool.Math & Finance Tools
- 18EMI Calculator - Loan Payment & ScheduleCalculate loan EMI, total interest, and total payment with a full amortization schedule. Free browser-based calculator for home, car, and personal loans.Math & Finance Tools
- 19Final Grade Calculator - What Do I Need on My Final?Calculate the score you need on your final exam to reach your target grade. Free, instant, browser-based.Math & Finance Tools
- 20Fraction Calculator - Add, Simplify & ConvertFree browser-based fraction calculator: add, subtract, multiply, and divide fractions, simplify to lowest terms, and convert decimals to fractions.Math & Finance Tools
- 21Free Tip Calculator - Split Bills & Calculate Tips InstantlyCalculate the right tip amount and split the bill evenly. Free online tip calculator with custom percentages for restaurants, delivery, and group dining.Math & Finance Tools
- 22Fuel Cost Calculator - Trip & Commute Fuel CostsCalculate the fuel cost of any trip or your monthly commute, with km/miles, L/100km or MPG, cost per person, and round-trip support. Free and browser-based.Math & Finance Tools
- 23GPA Calculator - US & EU Grading ScalesCalculate your Grade Point Average from course grades and credit hours. Supports 4.0 (US), 10-point (EU), and percentage scales. Free.Math & Finance Tools
- 24Grade Calculator - Weighted Average & FinalsFree browser-based grade calculator for weighted course averages, plus a final exam mode that shows the score you need to reach your target grade.Math & Finance Tools
- 25Grade Curve Calculator - Curve Test ScoresCurve a set of test scores with a flat add, square root curve, or scale-to-highest, and compare before/after statistics. Free and browser-based.Math & Finance Tools
- 26GST Calculator - Add or Remove GSTAdd or remove GST at 5, 12, 18, or 28 percent plus custom rates, with CGST and SGST split. Free browser-based calculator for Indian invoices.Math & Finance Tools
- 27IBAN Validator - Check 89 CountriesCheck IBANs from 89 countries against the MOD-97 check digits, the country's own length and its character layout. For Dutch IBANs it names the bank. Instant, in your browser.Math & Finance Tools
- 28Ideal Weight Calculator - Robinson, Miller, Devine & HamwiSee your ideal body weight per four classic formulas and the healthy BMI range, in kg and lb. Free, instant, browser-based.Math & Finance Tools
- 29Inflation Calculator - Fixed Rate & US CPIProject future costs at a fixed inflation rate or convert dollars between any two years 1913-2025 with US CPI data. Free browser-based calculator.Math & Finance Tools
- 30Investment Calculator - Lump Sum + MonthlyProject investment growth from a lump sum plus monthly contributions with monthly compounding. Free browser-based tool with year-by-year table.Math & Finance Tools
- 31Length Converter - Meters, Feet & MilesConvert between meters, feet, inches, miles, kilometers, and 13 length units. Instant results with full reference table.Math & Finance Tools
- 32Loan Calculator - Payments & AmortizationCalculate monthly loan payments, total interest, and full amortization schedule. Compare two loan scenarios side by side. Free tool.Math & Finance Tools
- 33Macro Calculator - Protein, Carbs & Fat TargetsCalculate your daily calories with Mifflin-St Jeor and get protein, carb, and fat gram targets for balanced, low-carb, and high-protein splits. Free, instant, browser-based.Math & Finance Tools
- 34Meeting Cost Calculator - Live TimerCalculate the true cost of meetings based on attendees and hourly rates. Includes a live meeting timer with running total. Free tool.Math & Finance Tools
- 35Mortgage Calculator - Payments & AmortizationCalculate mortgage payments, total interest, and full amortization schedule. Supports monthly, bi-weekly, and weekly payment frequencies.Math & Finance Tools
- 36Number Base Converter - Binary, Hex & MoreConvert between binary, octal, decimal, and hexadecimal number systems instantly. Free online tool for developers and students.Math & Finance Tools
- 37Numbers to Words Converter - Free & InstantFree browser-based numbers to words converter up to quadrillions, with decimals, British style, and a currency mode for writing check amounts.Math & Finance Tools
- 38One Rep Max Calculator - Epley, Brzycki & MoreEstimate your 1RM from any set using the Epley, Brzycki, Lombardi, and O'Conner formulas, with a training percentage table. Free, instant, browser-based.Math & Finance Tools
- 39Percentage Calculator - 4 Calculators in OneCalculate percentages instantly: X% of Y, percentage change, tip calculator and more. Four calculators in one free tool.Math & Finance Tools
- 40Percentage to CGPA Calculator - 10 & 4 PointFree browser-based converter between percentage and CGPA using the CBSE 9.5 formula, with 4-point GPA conversion and a handy reference table included.Math & Finance Tools
- 41Profit Margin Calculator - Margin & MarkupCalculate gross margin, markup, and profit from cost and revenue, or find the price for a target margin. Free browser-based pricing calculator.Math & Finance Tools
- 42Random Number Generator - Fast & SecureGenerate random numbers within any range. Unique or with duplicates, bulk generation, quick presets. Cryptographically secure.Math & Finance Tools
- 43Ratio Calculator - Solve, Simplify, and Scale RatiosSolve proportions with one unknown, simplify ratios to lowest terms, and scale ratios for recipes. Free, instant, browser-based.Math & Finance Tools
- 44Retirement Calculator - Nest Egg & 4% RuleProject retirement savings in future money and today's purchasing power, plus 4% rule monthly income. Free browser-based planner with yearly table.Math & Finance Tools
- 45ROI Calculator - Return on InvestmentCalculate ROI percentage, net gain, and annualized ROI from amount invested and returned. Free browser-based tool, nothing uploaded.Math & Finance Tools
- 46Roman Numeral Converter - 1 to 3999, FreeFree browser-based Roman numeral converter for numbers 1-3999, with strict validation, a step-by-step breakdown, and a full symbol reference table.Math & Finance Tools
- 47Running Pace Calculator - Pace, Time, DistanceFree browser-based running pace calculator: enter two of distance, time, and pace to get the third, with km/mile splits and race finish predictions.Math & Finance Tools
- 48Salary Calculator - Annual to Hourly RateConvert between annual salary, monthly, biweekly, weekly, daily, and hourly rates instantly. Multi-currency support. Free tool.Math & Finance Tools
- 49Sales Tax Calculator - Add or Extract TaxAdd sales tax to a net price or extract tax from a gross total. Free browser-based calculator with quick rates, works for US sales tax and VAT alike.Math & Finance Tools
- 50Savings Goal Calculator - Months to Goal & Required DepositCalculate how long a savings goal takes with monthly deposits and interest, or the monthly deposit needed to hit a deadline. Free and browser-based.Math & Finance Tools
- 51Shoe Size Converter - EU, US, UK Sizes and cmConvert shoe sizes between EU, US, and UK systems plus foot length in cm, for men, women, and kids. Free, instant, browser-based.Math & Finance Tools
- 52Simple Interest Calculator - Free & InstantCalculate simple interest with I = P x r x t. Free browser-based calculator with total amount, months or years, and a compound interest comparison.Math & Finance Tools
- 53SIP Calculator - Mutual Fund ReturnsEstimate SIP maturity value from monthly investment, expected return, and years. Free browser-based calculator with invested vs returns breakdown.Math & Finance Tools
- 54Sleep Calculator - Best Bedtime & Wake-Up TimesFind the ideal time to go to bed or wake up based on 90-minute sleep cycles, so your alarm rings in light sleep. Free, instant, browser-based.Math & Finance Tools
- 55Speed Converter - km/h, mph, m/s, Knots, ft/sConvert speeds between km/h, mph, m/s, knots, and ft/s live as you type, with a reference table. Free, instant, browser-based.Math & Finance Tools
- 56Split Bill Calculator - Group Expenses & Settle UpSplit group expenses fairly: per-person balances and the minimal set of transfers to settle up after a trip or dinner. Free and browser-based.Math & Finance Tools
- 57Standard Deviation Calculator - Sample & PopulationPaste numbers and get sample and population standard deviation, variance, mean, and a step-by-step breakdown. Free, instant, browser-based.Math & Finance Tools
- 58TDEE Calculator - Daily Calorie Needs, FreeFree browser-based TDEE calculator using the Mifflin-St Jeor equation, with metric and imperial units plus calorie targets for cutting and bulking.Math & Finance Tools
- 59Temperature Converter - Celsius, Fahrenheit, KelvinConvert temperatures between Celsius, Fahrenheit, and Kelvin instantly, with formulas and a reference table. Free, instant, browser-based.Math & Finance Tools
- 60Test Grade Calculator - Easy Grader for TeachersEnter questions and wrong answers to get the score and letter grade, plus a full grading chart. Free, instant, browser-based.Math & Finance Tools
- 61Test IBAN Generator - Valid Test IBANsGenerate test IBANs for NL, DE, BE, FR and GB that pass MOD-97 and the country's own format, plus the national check digit for Belgium and France. Real format, no real account.Math & Finance Tools
- 62Unit Converter - Length, Weight & MoreConvert between length, weight, temperature, speed, and data units. Instant results with all common units. Free online tool.Math & Finance Tools
- 63VAT Calculator - All 27 EU CountriesCalculate VAT for all 27 EU countries. Convert between amounts excluding and including VAT. Instant results with correct rates.Math & Finance Tools
- 64Volume Converter - Liters, Gallons & CupsFree browser-based volume converter between liters, gallons, quarts, pints, cups, fluid ounces, tablespoons, and more, all shown at once instantly.Math & Finance Tools
- 65Water Intake Calculator - How Much Water Per Day?Estimate your daily water needs from body weight, exercise minutes, and climate, in liters and 250 ml glasses. Free, instant, browser-based.Math & Finance Tools
- 66Weight Converter - kg, lbs, Stone & MoreConvert between kilograms, pounds, stone, ounces, tonnes and 12 weight units. Instant results with reference table. Free online.Math & Finance Tools
PDFTools
12 tools- 01Add Watermark to PDF - Free & PrivateAdd a text watermark like CONFIDENTIAL to every PDF page with custom color, angle, and opacity. Free and browser-based, with no upload.PDF Tools
- 02Compress PDF Online - Reduce File Size FreeReduce PDF file size by up to 70% by rebuilding the document structure. Free, private, and instant - your files never leave your browser.PDF Tools
- 03Ebook Converter - EPUB, MOBI, AZW3, PDF, DOCX, TXTConvert EPUB, MOBI and AZW3 ebooks to EPUB, PDF, Word, HTML or text, or turn a Word document, web page, text or Markdown file into an EPUB with chapters. Runs in your browser, the book is never uploaded.PDF Tools
- 04Image to PDF Converter - Free Online ToolConvert JPG and PNG images to PDF instantly. Choose A4 or custom size, drag to reorder. Free and browser-based - no upload required.PDF Tools
- 05Merge PDF Files Online - Free & InstantCombine multiple PDF files into one document instantly. Free, no upload needed - everything runs in your browser. Drag to reorder pages.PDF Tools
- 06PDF Text Extractor - Copy Text FreeExtract all text content from PDF files instantly. Client-side processing - your files never leave your device. Free online tool.PDF Tools
- 07PDF to Image Converter - PNG & JPEG FreeConvert PDF pages to high-quality PNG or JPEG images. Free online tool - no upload needed. Works instantly in your browser.PDF Tools
- 08PDF to Word Converter - Editable DOCX, With OCR for ScansConvert a PDF to an editable Word document with real paragraphs, headings and page breaks. Scanned pages are read with OCR in 7 languages. Runs in your browser, nothing uploaded.PDF Tools
- 09Reorder PDF Pages - Drag & Drop FreeRearrange, reorder, or delete pages in a PDF file. Visual drag-and-drop interface. Download as new PDF. Free and browser-based.PDF Tools
- 10Rotate PDF Online - Free & PrivateRotate PDF pages 90 or 180 degrees, all at once or per page, with live thumbnails. Free browser-based tool, your files never leave your device.PDF Tools
- 11Split PDF Online - Extract Pages for FreeExtract specific pages from a PDF or split it into multiple files. Select pages by range or individually. Free and browser-based.PDF Tools
- 12Word to PDF Converter - DOCX to PDF in Your BrowserConvert a Word .docx to PDF without uploading it. Headings, lists, tables and images are laid out on A4 and saved through your browser's print dialog. Free and private.PDF Tools
Security& Privacy Tools
07 tools- 01Credit Card Validator - Luhn Check FreeValidate credit card numbers using the Luhn algorithm. Detects card type (Visa, Mastercard, Amex). Free, private, browser-based.Security & Privacy Tools
- 02Encryption Tool - AES-256 Browser-BasedEncrypt and decrypt text using AES-256-GCM, entirely in your browser. Your data never leaves your device. Free and secure.Security & Privacy Tools
- 03Hash Generator - SHA-256, SHA-512 & MoreGenerate SHA-1, SHA-256, SHA-384, and SHA-512 hashes securely in your browser. Uses Web Crypto API - your data never leaves your device.Security & Privacy Tools
- 04htpasswd Generator - Apache Basic AuthGenerate .htpasswd entries with APR1-MD5 or SHA-1 for Apache and Nginx basic auth. Free and browser-based - passwords are hashed locally, never uploaded.Security & Privacy Tools
- 05JWT Encoder - Build & Sign Tokens OnlineBuild and sign JSON Web Tokens with HS256, HS384, or HS512 in your browser. Free JWT generator with claim helpers - secrets never leave your device.Security & Privacy Tools
- 06Password Strength Tester - Free & PrivateTest password strength with estimated crack time, entropy analysis, and pattern detection. Runs locally - your password never leaves your device.Security & Privacy Tools
- 07Strong Password Generator - Secure & RandomGenerate strong, secure passwords with customizable length and complexity. Uses browser cryptography for true randomness - nothing is stored or transmitted. Free online password generator.Security & Privacy Tools
SEOTools
14 tools- 01Broken Link Checker - Free Single Page ScanScan up to 40 links on a single page and see which are broken, redirected or fine. Free, with the failures listed first.SEO Tools
- 02Canonical Checker - Free rel=canonical TestCheck whether a page canonical points at itself, elsewhere or nowhere. Free rel=canonical and hreflang audit with a clear verdict.SEO Tools
- 03Hashtag Generator - Instagram, TikTok & XTurn any caption into relevant hashtags for Instagram, TikTok, and X using curated niche sets. Free browser-based generator with platform limits.SEO Tools
- 04Headline Analyzer - Score Your Titles 0-100Score headlines 0-100 on length, power words, emotion, and format, with a SERP pixel-width preview. Free browser-based analyzer with concrete tips.SEO Tools
- 05Hreflang Tag Generator - International SEOGenerate valid hreflang link tags and the XML sitemap variant for multilingual sites, with validation. Free browser-based international SEO tool.SEO Tools
- 06Meta Tag Checker - Free Live Page AuditCheck the title, description, canonical, robots and Open Graph tags on any live page. Free, with a Google snippet and social card preview.SEO Tools
- 07Meta Tag Generator - SEO Tags in SecondsGenerate optimized SEO meta tags for your website. Title, description, Open Graph, robots, and canonical tags. Free with live preview.SEO Tools
- 08Open Graph Preview - Social Share TesterPreview how your page will look when shared on Facebook, Twitter, and LinkedIn. Test Open Graph tags before publishing. Free tool.SEO Tools
- 09robots.txt Generator - SEO Crawl ControlGenerate a robots.txt file to control search engine crawling. Set rules for specific bots and paths. Free online generator.SEO Tools
- 10Robots.txt Tester - Check if a URL is BlockedTest whether a URL is allowed or blocked by robots.txt for Googlebot, Bingbot, GPTBot, or any crawler. Free browser-based tester with templates.SEO Tools
- 11Schema Markup Generator - JSON-LD FreeGenerate JSON-LD structured data for better search engine results. Organization, Article, FAQ, Product and more schema types.SEO Tools
- 12SERP Snippet Preview - Google Result SimulatorPreview your Google search snippet on desktop and mobile with real pixel-width meters and counters. Free browser-based SERP simulator for SEO work.SEO Tools
- 13UTM Link Builder - Campaign URL GeneratorBuild trackable campaign URLs with utm_source, medium, and campaign parameters, presets, and history. Free browser-based builder for marketers.SEO Tools
- 14XML Sitemap Generator - Free SEO ToolGenerate valid XML sitemaps from a list of URLs. Set custom frequency, priority, and last modified dates. Free online sitemap builder.SEO Tools
Text& Content Tools
42 tools- 01Add Line Numbers to Text - Free & PrivateNumber every line of your text with a custom start number and separator style. Free browser-based tool that can skip empty lines automatically.Text & Content Tools
- 02Add Prefix & Suffix to Lines - Free & PrivateAdd text to the start and end of every line at once. Free browser-based tool for wrapping lists in quotes, tags, or bullets with live preview.Text & Content Tools
- 03Baby Name Generator - 13 Origins WorldwideFind the perfect baby name. Browse boy and girl names from 13 origins worldwide. Save favorites, filter by letter. Free name finder.Text & Content Tools
- 04Braille Translator - Free & PrivateTranslate text to Grade 1 Unicode braille and back with correct capital and number signs. Free browser-based braille converter for learners.Text & Content Tools
- 05Character Counter - Free Online Character Count ToolCount characters, words, sentences, and paragraphs with character frequency analysis. Live counting as you type. Free and private.Text & Content Tools
- 06Citation Generator - APA, MLA & ChicagoGenerate APA 7th, MLA 9th, and Chicago style citations for websites, books, and journal articles. Copy formatted citations. Free.Text & Content Tools
- 07Cover Letter Generator - Free PDF Cover LettersWrite a structured cover letter and export it as a clean PDF or plain text. Free, saved in your browser.Text & Content Tools
- 08CSV Column Extractor - Free & PrivateExtract chosen columns from CSV data with quoted field support and delimiter auto-detection. Free browser-based tool, data never leaves you.Text & Content Tools
- 09Emoji Picker & Search - Copy InstantlySearch and copy emojis instantly. Browse by category, search by name, see recently used. Click to copy. Free online emoji finder.Text & Content Tools
- 10Fancy Text Generator - Unicode Fonts FreeTransform your text into stylish Unicode fonts: bold, italic, cursive, gothic, and more. Copy-paste anywhere. Free instant generator.Text & Content Tools
- 11Fantasy Name Generator - 10 Unique StylesGenerate unique fantasy names for characters, games, and stories. 10 styles including Elvish, Dwarven, and Sci-Fi. Free and instant.Text & Content Tools
- 12Find and Replace Text - Free & PrivateSearch and replace text with live preview, replacement count, whole word mode, and full regex support. Free tool that runs in your browser.Text & Content Tools
- 13Flashcard Maker - Study with Spaced RepetitionCreate flashcards with flip animation and study using the Leitner spaced repetition system. Import/export JSON, localStorage persistence.Text & Content Tools
- 14Glitch Text Generator - Free & PrivateCreate zalgo glitch text with stacked Unicode marks in mild, medium, or heavy intensity. Free browser-based generator with copy and paste output.Text & Content Tools
- 15Invisible Character Generator - Free & PrivateCopy invisible Unicode characters, generate any amount, and detect hidden ones in pasted text. Free browser-based tool for blank messages.Text & Content Tools
- 16Keyword Density Analyzer - SEO CheckerAnalyze word frequency, n-gram density, and keyword distribution for SEO optimization. See overused and underused terms. Free tool.Text & Content Tools
- 17Leetspeak Translator - Free & PrivateConvert text to leetspeak in basic, advanced, or extreme intensity and decode 1337 back to English. Free translator that runs in your browser.Text & Content Tools
- 18Lorem Ipsum Generator - Free Placeholder TextGenerate placeholder text for your designs, mockups, and layouts. Choose paragraphs, sentences, or word count. One-click copy.Text & Content Tools
- 19Markdown Preview - Live Side-by-Side ViewWrite Markdown and see the rendered output in real-time. Split-pane editor with full CommonMark support. Free and browser-based.Text & Content Tools
- 20Markdown Table Generator - Visual EditorCreate tables visually and export as Markdown, HTML, or CSV. Import from CSV or paste from spreadsheets. Free online tool.Text & Content Tools
- 21Markdown to HTML Converter - Live PreviewConvert Markdown text to clean HTML code with live preview. Copy generated HTML instantly. Free online converter.Text & Content Tools
- 22Meme Text Generator - sPoNgEbOb, IMPACT, UwU & MoreTransform text into meme styles: sPoNgEbOb CaSe, IMPACT CAPS, uwu-ify, pirate speak, backwards, and zalgo text. One-click copy, free and instant.Text & Content Tools
- 23Morse Code Translator - Text & Audio FreeConvert text to Morse code and back with audio playback. Hear the dots and dashes. Free, browser-based Morse code tool.Text & Content Tools
- 24Plagiarism Checker - Compare Texts FreeCompare two texts side by side and get a similarity percentage. Highlights matching sentences. Free, private - runs in your browser.Text & Content Tools
- 25Readability Checker - Flesch Score & MoreCheck text readability with Flesch-Kincaid, SMOG, Gunning Fog, and Coleman-Liau scores. See grade level and audience fit. Free tool.Text & Content Tools
- 26Reading Time Calculator - Estimate Read & Speak DurationCalculate reading time and speaking time for any text. Supports slow, average, and fast reading speeds plus presentation timing. Free and private.Text & Content Tools
- 27Remove Duplicate Lines - Free & PrivateDelete duplicate lines from any list with case-insensitive matching and trimming. Free browser-based deduplicator that counts removed lines.Text & Content Tools
- 28Remove Line Breaks - Free & PrivateJoin broken lines into flowing text with a space, no separator, or custom string. Free browser-based tool that can keep paragraph breaks.Text & Content Tools
- 29Reverse Text Online - Free & PrivateReverse text three ways: flip all characters, reverse word order, or mirror each line. Free browser-based tool with instant live results.Text & Content Tools
- 30ROT13 Encoder & Decoder - Free & PrivateEncode and decode ROT13 or any Caesar cipher shift from 1 to 25. Free browser-based cipher tool that preserves case and skips punctuation.Text & Content Tools
- 31Sort Lines Alphabetically - Free & PrivateSort text lines A to Z, Z to A, by length, natural numeric order, or random shuffle. Free browser-based sorter with duplicate removal built in.Text & Content Tools
- 32Subtitle Converter - SRT to VTT, Shift, Merge and RepairConvert subtitles between SRT and WebVTT, shift or stretch the timing, append a second part, and repair overlaps, empty cues and wrong order. Runs in your browser, nothing uploaded.Text & Content Tools
- 33Text Case Converter - 7 Formats InstantlyConvert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more. Instant results, free online tool.Text & Content Tools
- 34Text Cleaner - Free & PrivateClean messy text in one pass: strip HTML, extra spaces, empty lines, punctuation, numbers, emojis, and smart quotes. Free browser-based tool.Text & Content Tools
- 35Text Similarity Analyzer - Compare TextsCompare two texts for similarity using Jaccard, cosine, and Levenshtein algorithms. Get detailed similarity scores. Free and private.Text & Content Tools
- 36Text to Binary Converter - Hex & Octal TooConvert text to binary, hexadecimal, and octal and back. Includes ASCII table reference. Free online converter tool.Text & Content Tools
- 37Text to Handwriting - Download as ImageConvert typed text into realistic handwriting on paper. Download as PNG image. Free, fun tool - runs entirely in your browser.Text & Content Tools
- 38Text to Speech - Free Online TTSConvert text to speech using your browser's built-in voices. Choose voice, speed, and pitch. Free, private - no data uploaded.Text & Content Tools
- 39Typing Test - Free WPM Speed TestTest your typing speed and accuracy in words per minute. Track WPM, accuracy, and character stats. Free online typing test.Text & Content Tools
- 40Upside Down Text Generator - Free & PrivateFlip text upside down or mirror it with Unicode characters you can paste anywhere. Free browser-based generator for social media and chats.Text & Content Tools
- 41Word Counter & Character Counter - Free OnlineCount words, characters, sentences, and paragraphs with reading time estimate. Includes keyword density analysis and character count with and without spaces. Free, instant, and private.Text & Content Tools
- 42Word Frequency Counter - Free & PrivateCount how often each word appears with a ranked table, percentages, and stop word filtering. Free browser-based word frequency analysis tool.Text & Content Tools