Writing / Comparison
Text Diff
See exactly which lines were added, removed, or kept between two versions of a document or code snippet.
Runs entirely on your deviceNo uploads, accounts, cookies, or personal tracking.
Compare two versions
Up to 1,500 lines per side
Add both versions to begin.
1. Add your data
Paste the original and revised text.
2. Choose the result
Compare them line by line with additions and removals highlighted.
3. Save it locally
Copy or download the unified diff for your records.
About this tool
Use Text Diff without an upload
See exactly which lines were added, removed, or kept between two versions of a document or code snippet.
The operation runs in the current browser tab. Tool input is not included in aggregate analytics, and the standalone download makes no analytics requests.