🔀Text Compare / Diff
Compare two texts side by side to see additions, deletions, and changes. Useful for code review, document change tracking, contract revision review, translation comparison, suspected plagiarism check, and resume version control.
How to use
- 1Paste text into both left and right panes.
- 2Choose line or word-level mode.
- 3Differences are highlighted in color.
FAQ
What algorithm is used?+
Based on the standard Myers diff algorithm via the `diff` library — same standard as Git and VSCode.
Line vs word — which to pick?+
Line-level is cleaner for code; word-level shows finer differences in prose.
Can long documents be compared?+
Tens of thousands of lines process instantly. Word-level uses more memory, so it's best for shorter passages.
Why does my Git diff look different?+
Git shows context lines (a few lines before/after); this tool highlights only the changes. The underlying algorithm is the same.
Can I diff images or PDFs?+
Text only. For images, use the Image Before/After Slider tool. For PDFs, extract text first.
Can I share diffs like a GitHub PR?+
Display only for now. Take a screenshot or copy the result to share.