Add the original text
Paste the baseline into the left field. Keep line endings and surrounding context consistent so changes are meaningful.
Free online text diff and comparison tool
Compare an original and changed block line by line without sending either version to the server. Use the result for a quick inspection, not as a replacement for version-control history.
Compare two text blocks
Use the left side for the original and the right side for the changed version.
How to use free online text diff and comparison tool accurately
This diff tool keeps input local, but its result still needs the human review described in the steps below before it is shared or used.
Add the changed text
Paste the candidate revision on the right, then compare to mark removed and added lines.
Interpret the result
A minus marks a line from the original and a plus marks its replacement or addition. Review nearby unchanged lines before deciding what changed semantically.
What this diff tool does not do
The comparison is deliberately simple and line-based. It does not calculate a merge base, detect moved blocks, preserve authorship, resolve conflicts, or understand a programming language's syntax.
Before sharing the diff result, read Diff pastebin guide for the matching context and privacy checks.
Free online text diff and comparison tool questions
Privacy, limits, and correct interpretation.
Are the compared texts uploaded?+
No. Both inputs and the generated comparison stay in the browser.
Is this the same as a Git diff?+
No. Git understands repository versions and context; this tool provides a quick two-block line comparison.
Can I compare code and configuration?+
Yes, but inspect semantic changes with the relevant compiler, parser, test suite, or schema afterward.
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