Text & Code Diff Checker
Paste or drop two versions to see every change instantly — word-level highlights, huge files, nothing uploaded.
Help shape Text & Code Diff Checker
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Frequently Asked Questions
No. Both sides are compared in your browser by a background worker. Nothing is sent to a server, and share links carry the comparison inside the link itself.
Up to 200 MB per side. Hundreds of thousands of lines compare in about a second, and the viewer only draws the rows on screen, so scrolling stays smooth.
Yes. Open Options to ignore whitespace changes, case, blank lines or line endings, or add regex patterns — presets cover timestamps, UUIDs, hashes and numbers.
Yes. Switch to JSON / YAML: both sides are parsed and normalised, so reordered keys and formatting don't count, and you get a list of every changed path.
Copy or download a unified .patch that git apply accepts, download a standalone HTML report, or share a link that reopens the same comparison.