Text Compare:
Find Every Difference.

The tool uses a standard word level comparison algorithm, the Myers diff, the same approach version control systems use. It compares both texts word by word and identifies which words were added, removed, or stayed the same. The result highlights those changes in color so they are easy to read at a glance.

Green text is content that exists in the edited version but not in the original. Red strikethrough text is content that was in the original but removed in the edited version. Neutral text is unchanged in both.

Inline view shows both changes merged into a single block of text. Side by side puts the original and edited versions in two columns with changes aligned across rows. Side by side is better for longer texts. Inline is more compact for short comparisons.

No. The entire comparison runs in your browser using JavaScript. Your text never leaves your device. Nothing is stored, logged, or transmitted.

No hard limit is enforced. Very large texts (tens of thousands of words) may take a moment to process depending on your device, but there is no cap imposed by the tool itself.

Yes. The tool processes any plain text input, including HTML markup. It compares the raw content word by word, which can be useful when reviewing template or markup changes. It does not render the HTML.

Document track changes is designed for collaborative editing inside a specific app. This tool is a standalone, instant, no-install way to get a visual comparison of any two text snippets. No app, no account, no file format required.

Yes, completely free. No account, no daily limits, no text length restrictions. The entire comparison runs in your browser.

A text diff is the result of comparing two texts: a list of everything that was added, removed, or left unchanged between them. The name is short for difference and became the standard term through software development, where a diff checker is a daily tool. This page is a text diff tool built for prose: it works word by word instead of line by line, which keeps the result readable for normal writing.

Paste the original into the left field and the updated version into the right, then click Compare. The differences appear instantly: additions highlighted in green, deletions in red strikethrough, unchanged text neutral. Switch between inline and side by side view depending on the length of the text.

Both. The comparison works on any amount of text, from a single sentence to a full document. For short fragments the inline view is usually easier to read. There is no minimum and no hard maximum.