Text Compare

Paste the original text and the changed text to see exactly what was added, removed or modified. Changed lines are shown side by side, with the changed words highlighted inside them.

Use it to check edits to contracts and essays, compare two versions of code or configuration, or find what changed between two lists.

How to compare two texts

1. Paste the original text on the left and the changed text on the right.
2. Choose the side-by-side or unified view and, if you want, ignore whitespace or letter case.
3. Click Compare. Copy or download the differences as a .diff file.

Text compare features

• Line-by-line comparison with word-level highlighting.
• Side-by-side and unified views, readable on phones and in dark mode.
• Counts of added, removed and unchanged lines.
• Long unchanged parts are folded so you see only what matters.

Reading the result

Red lines with − were removed from the original, green lines with + were added. When a line was edited, both versions appear next to each other and only the changed words are marked, so small edits are easy to spot.

Frequently asked questions

Is my text stored?

No. The comparison runs in your browser and nothing is uploaded.

Can I ignore differences in spaces?

Yes. Switch on Ignore whitespace and lines that differ only in spacing count as unchanged.

How long can the texts be?

Up to 300,000 characters each.

Privacy: your data stays on your device

This tool runs entirely in your browser. Your text, numbers, images and files are processed on your own device and are never uploaded to our server or shared with anyone. It is free, needs no sign-up and works on Windows, Mac, Android and iPhone.

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