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Free tool · 🆚 Text diff checker

What changedbetween these two?

Before/after configs, two exports, a colleague’s edit — see exactly what differs, line by line, with a unified-diff download for tickets and change records.

Everything runs locally in your browser. Handles a few thousand lines comfortably.

What it checks

Everything we would look at first on a client call.

Free, no sign-up, no email gate. If the report shows red, the fix is written next to it — and we are one click away if you would rather we did it.

  • Line-level diff with added/removed/changed highlighting
  • Ignore whitespace and case
  • Unified diff (.patch) download for change tickets
  • Statslines added, removed, unchanged
FAQ

Common questions

Can I diff two files?
Open each file in a text editor and paste; for binaries or huge files use git diff or Beyond Compare.
Is it the same as git diff?
Same idea (longest-common-subsequence). The .patch output is readable by patch/git apply for small changes.