Sort Lines Alphabetically - Free Online Line Sorter

How the Line Sorter Works

1. 01Paste your list into the input box, one entry per line.
2. 02Pick a sort order: A to Z, Z to A, by length, natural numeric, or random shuffle.
3. 03Toggle case-insensitive sorting and duplicate removal as needed.
4. 04Copy the sorted result; use Shuffle Again for a new random order.

Choosing the Right Sort Order

Alphabetical A to Z is the everyday default, and with case-insensitive mode enabled it behaves like a dictionary, keeping apple next to Apple instead of grouping all capitals first. Z to A simply reverses that. Sort by length arranges lines from shortest to longest, which is surprisingly useful: password lists, slogans, and headline candidates are often evaluated by length, and CSS class or variable name lists become easier to scan. Natural numeric sort is the mode to reach for whenever your lines contain numbers. A plain alphabetical sort places item10 before item2 because the character 1 sorts before 2, while natural mode compares the embedded numbers as whole values and produces item2, item9, item10, the order every human expects. It is the correct choice for filenames, version numbers, and episode lists. Random shuffle uses the Fisher-Yates algorithm, which guarantees every possible order is equally likely, making it fair for prize draws, quiz question ordering, and picking presentation sequence. The shuffle button generates a fresh arrangement each time. Duplicate removal runs before sorting, so combining both options turns any messy list into a clean ordered set in one action.

When to Use the Line Sorter

Sort whenever order carries meaning: alphabetizing glossaries, references, and name lists, ordering configuration keys to keep code diffs minimal, ranking lines by length when evaluating title candidates, or applying natural sort to filenames and version numbers where plain alphabetical order fails. Use random shuffle for fair drawings and randomized quizzes. If duplicates are the main problem rather than order, the dedicated duplicate remover gives you a removal count as well.

Common Use Cases

• ·Alphabetize a bibliography or glossary before publishing a document.
• ·Natural-sort filenames like img2.png and img10.png into human order.
• ·Shuffle quiz questions or prize draw entries with a fair random order.
• ·Deduplicate a merged list first for a precise removal count. → Remove Duplicate Lines

Expert Tips

• ✻Use natural sort for anything containing numbers: versions, filenames, addresses, episode titles.
• ✻Keep case-insensitive on for human-facing lists; turn it off only for code where case matters.
• ✻Sort configuration lines and imports alphabetically to keep version control diffs small and reviewable.

Frequently Asked Questions