Text Diff Checker

Compare two texts and return a line-by-line JSON diff.

Max 4000 chars, 400 lines per input
/api/diff?a=Line+one%0ALine+two%0ALine+three&b=Line+one%0ALine+2%0ALine+three%0AExtra+line
Returns JSON with line changes marked as equal,insert, and delete.

Guide

Text Diff Tool Guide

Compare two text blocks and highlight line-by-line differences. Useful for content reviews and QA checks.

How It Works

  • Paste the original text on the left.
  • Paste the updated text on the right.
  • Review added and removed lines.

Practical Tips

  • Keep formatting consistent to avoid noise.
  • Use for changelogs or QA approvals.
  • Export differences before publishing.

FAQs

Is it line-based?

Yes, it compares text line by line.

Does it ignore whitespace?

Not currently, but it can be added.

Can I use the API?

Yes, the endpoint returns diff JSON.