Text Diff: Comparing Two Versions Line-by-Line
When two texts are almost identical but not quite, a diff tool highlights exactly what changed. Used for comparing document drafts, spotting code edits, verifying translations, and reconciling lists.
A diff (difference) compares two versions of text and shows additions, removals, and changes. Most diffs are line-based: each line is either unchanged, added, removed, or modified. The visual output uses color coding — typically green for additions and red for removals.
Common use cases
- •Comparing two versions of an essay or article
- •Spotting changes between code revisions (when not using Git)
- •Verifying that a translation matches the source
- •Reconciling two contact lists or spreadsheet exports
- •Spotting typos that crept into a copy-paste
Extended FAQ
Word-level vs line-level diff?
Line-level shows whole lines as added/removed. Word-level highlights changes within lines — better for prose but more visual noise on big rewrites.
Are my pasted texts stored?
No — runs entirely in your browser.