🆚 Text Diff Checker
Compare two texts and see added, removed and unchanged parts by line, word or character — locally.
📋 Diff result
🔐 The diff is computed in your browser. A small open-source diff library is loaded from jsDelivr; your texts are never uploaded.
How to use this tool
Overview
Text Diff Checker - Compare Two Texts Online compares two texts and highlights every difference: additions in green, deletions in red, unchanged content untouched. Switch between line-by-line comparison for documents and logs, word-level comparison for prose, and character-level comparison to catch typos and punctuation. Live statistics count added, removed and unchanged units, and the copy button produces a unified + / − diff list you can paste anywhere. Everything is computed locally in your browser — only a small open-source diff library is fetched from a CDN, and your texts themselves are never uploaded.Frequently asked questions
What is a text diff? +
A diff shows what changed between two versions of a text: added parts are highlighted in green, removed parts in red, and everything else is unchanged. The Text Diff Checker - Compare Two Texts Online supports line, word and character granularity.
Which comparison mode should I use? +
Use line mode for documents and logs, word mode for prose edits, and character mode to catch typos and punctuation changes.
Are my texts uploaded? +
No. The comparison runs entirely in your browser. Only a small open-source diff library is fetched from the jsDelivr CDN; your content is never transmitted.
Can I copy the result? +
Yes — press the copy button to get a unified diff list with + for added and - for removed content.