Compare two blocks of text and highlight what changed, down to the word.
Keep going with what you just made.
- const x = 1 + const x = 2 const y = 3 - return x + y + return x * y
Line-by-line diff with +/- highlighting
Sample output — your files never leave your device.
Paste the original on one side and the revised version on the other — the diff highlights what's added, removed and changed automatically.
Yes — it diffs any plain text, code included. Paste two versions of a snippet or config and changed lines are highlighted.
Line-level changes: lines added, lines removed, and lines that were modified. It's the same model as a Git-style line diff.
No — the comparison runs in your browser. Both texts stay on your device, which matters for contracts, code and other sensitive content.
Yes. Text Diff Checker is completely free on GenRise, with no limits, watermarks, or hidden paywalls.
No. Every GenRise tool works instantly in your browser — no account, email, or sign-up required.
No. Text Diff Checker runs entirely on-device using your browser, so your files are never uploaded or stored anywhere. All processing happens locally.
Text Diff Checker uses your browser's built-in capabilities — Canvas, WebAssembly, and File APIs — to process files locally. Compare two blocks of text and highlight what changed. Simply open the tool, select your file, and the result is generated instantly on your device.
Yes. Since Text Diff Checker processes everything in your browser, your files never leave your device. There is no server-side storage, no tracking of file contents, and no data collection.
Yes. Text Diff Checker works on any modern browser, including mobile devices. It is fully responsive and optimized for both desktop and mobile use.
GenRise Text Diff Checker compares two blocks of text and highlights exactly what changed — added lines, removed lines and edits — so you can spot the difference without reading every word. Paste the original and revised versions side by side and the diff is computed instantly. It's useful for comparing code snippets, contract revisions, essay drafts, config files or any two versions of text — and it runs locally, so confidential documents stay on your machine.
Text Diff Checker runs entirely in your browser. Anything you enter or upload is processed locally and never sent to a server. There is no account required, no tracking of your content, and no data collection.
