Diff Checker: Compare Two Texts and See What Changed
9 min read
Comparing two versions of text—before and after, original and edited—is easier when differences are highlighted. A diff checker shows what was added, removed, or changed so you can review edits, compare configs, or spot mistakes quickly.
When to use a diff
- Code: Compare two versions of a file or snippet.
- Contracts or documents: See what changed between drafts.
- Configs: Compare old and new settings before applying.
- Data: Spot differences in two similar lists or JSON blobs.
How it works
You paste the original text in one box and the modified text in the other. The tool highlights added lines (often green), removed lines (often red), and sometimes modified lines. Colours may vary by tool.
Our Diff Checker runs in your browser. Your text is never sent to our servers. Paste both versions and review the highlighted changes. No account required.