Archive Converter and Extractor - ZIP, 7z, RAR, TAR, GZ
Open a ZIP, 7z, RAR, TAR, TAR.GZ, GZ, BZ2 or XZ file, see what is inside, download the files, and convert the whole archive to ZIP, 7z, TAR or TAR.GZ. Or pack files of your own. Everything happens in your browser.
What Happens to Your Archive
ZIP, TAR and gzip are read and written natively in the page. 7z, RAR, BZ2 and XZ use 7-Zip itself, compiled to WebAssembly and loaded from toolforte.com the first time one of those formats shows up, so nothing leaves your device in either case. RAR can be read but not written, because the format is proprietary; the same is true for every tool, including 7-Zip. Password-protected archives are listed but their files cannot be extracted. ZIP64 archives, the kind over 4 GB, are refused rather than half-read.
Converting keeps the folder structure and file names exactly. What changes is the container: ZIP for anyone on any device, 7z when size matters and the recipient has 7-Zip or this page, TAR.GZ for Linux and macOS software and for anything that goes through a terminal, plain TAR when the files are already compressed. If you only need to look inside a ZIP, the ZIP Extractor is the lighter tool.
How the Archive Converter Works
- 01Drop an archive: ZIP, 7z, RAR, TAR, TAR.GZ or TGZ, or a single GZ, BZ2 or XZ file. The format is read from the bytes, not the name.
- 02See every file inside with its size. Download one file, or all of them as a ZIP.
- 03Convert the whole archive to ZIP, 7z, TAR or TAR.GZ with one click, or switch to Create to pack files you choose.
- 04Everything runs in your browser. ZIP, TAR and GZ are handled natively; 7z, RAR, BZ2 and XZ load a 7-Zip engine compiled to WebAssembly the first time you need it.
ZIP, 7z, RAR, TAR and GZ: What the Differences Mean
ZIP compresses every file on its own and stores an index at the end, which is why any tool on any platform opens it and why it is the safe choice to send to someone else. 7z compresses files together with LZMA, so a folder of similar documents gets much smaller, at the cost of needing 7-Zip or a tool like this one. RAR is a proprietary format: it can be read here, but never written, which is also true of 7-Zip itself. TAR is not compression at all; it is a way to store a directory tree, permissions included, as one file, and TAR.GZ is that file compressed with gzip, the shape most Linux and macOS software ships in. A lone .gz, .bz2 or .xz is one compressed file with no directory inside. The converter reads any of these and writes ZIP, 7z, TAR or TAR.GZ.
When to Use This Tool
When someone sends a .7z or .rar and your machine only opens ZIP. When a download is a .tar.gz and Windows shows a file it cannot open. When you need to hand a folder to a client as a ZIP but keep your own 7z copy. When you want to look inside an archive before extracting it, or pull out one file without unpacking a thousand. And when you are on a tablet or a locked-down office machine with no archive tool installed.
Frequently Asked Questions
- No. The archive is read, unpacked and rebuilt in your browser. The 7-Zip engine is downloaded once as a WebAssembly file from toolforte.com and runs locally.
- Not at the moment. An encrypted ZIP or 7z is listed but the protected files cannot be extracted.
- No. RAR is proprietary; it can be read, and the converter writes ZIP, 7z, TAR or TAR.GZ instead.
- It depends on your device's memory. Archives of a few hundred megabytes work on a normal laptop; ZIP64 archives over 4 GB are refused.
Are my files uploaded?→
Can it open password-protected archives?→
Can it create RAR files?→
How large can the archive be?→
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