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Diff Checker
Runs in your browserInput
Output
Ready — zero server calls
Related Tools
How to Use
- Paste the original text in the first field and the modified text in the second (or use --- as a separator).
- Click Compare to generate a diff.
- Review the highlighted additions and deletions in the unified diff output.
Compare Text Online
Paste two texts separated by --- and instantly see what changed. The diff checker shows added lines, removed lines, and a unified diff output â the same format used by git diff.
Uses for Diff Checking
Compare code changes before committing, verify configuration file changes, compare API responses, check document revisions, or validate data transformations. The diff runs entirely in your browser using the jsdiff library â your data stays private.