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justyourtext

Text Compare

Spot every difference between two versions of a text.

Differences

Paste two texts to compare them.

Removed text is highlighted in red and added text in green.

Your text stays in your browser. Nothing is uploaded.

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How to use the text compare

Three steps, all in your browser.

  1. 1

    Paste both versions

    Put the original on the left and the changed text on the right.

  2. 2

    See the differences

    Removed text turns red and added text green, line by line and word by word.

  3. 3

    Copy or download

    Copy the result in one click or save it as a .txt file.

Text Compare: what to know

Text Compare shows the differences between two versions of a text. Paste the original on the left and the changed version on the right, and the comparison updates as you edit. Removed text is highlighted in red and added text in green, side by side or in one inline view.

Lines are compared with the Myers diff algorithm, the method behind tools such as git diff, which finds a smallest set of line changes. Changed lines are then compared word by word, so a single edited word is highlighted instead of the whole line. 'Ignore case' and 'Ignore whitespace' hide changes you don't care about.

Both texts stay on your device. For very large inputs the comparison may take a moment, and when two texts are almost entirely different the remainder is shown as replaced rather than searched in detail, so your browser stays responsive.

Popular uses

  • Checking edits between two drafts of an essay or contract
  • Comparing configuration files or code snippets
  • Finding what changed in a policy or terms page
  • Proofreading a translation update against the old version

Tips for the best result

  • Turn on 'Ignore whitespace' when one version was reformatted.
  • Turn on 'Hide unchanged lines' to focus on the edits in long documents.
  • Download the result as a unified diff (+ and - lines) to share it.

Read how JustYourText works and our privacy details. Text you type or paste is processed in your browser and is never sent to our server.

Frequently asked questions

Lines are compared with the Myers diff algorithm, the same approach used by version control tools such as git. Changed lines are then compared word by word, so the exact edit is highlighted.

Yes. 'Ignore whitespace' treats lines that differ only in spaces as equal, and 'Ignore case' does the same for capital letters.

There's no fixed limit, but very large texts take longer because everything runs on your device. When two texts are extremely different, the remaining part is shown as replaced rather than searched in detail.

No. Every tool runs in your browser, so the text you type or paste is processed on your device and is not sent to our server or stored. Reloading or closing the page clears it.

Yes. Every tool is free with no sign-up and no limits on use. Clearly labeled ads keep it that way.

Yes. The tools work in any modern browser on phones, tablets and computers. Copy and Download work on mobile too.