Difference Checker
Compare two texts and find the differences between them.
🔒 100% private
⚡ Instant results
∞ No limits
Original Text
Modified Text
About Difference Checker
Compare two texts and find the differences between them. It runs entirely in your browser — no content you enter is ever sent to our servers or stored anywhere.
Free to use with no daily limits and no account required.
💡 Common Use Cases
- Compare code versions before committing to git
- Spot changes between document drafts
- Validate data transformations
- Compare email template versions side by side
❓ Frequently Asked Questions
Paste original text on the left and modified text on the right, then click Compare. Changed lines are highlighted in red (removed) and green (added).
Line by line — each line is compared directly. This is ideal for code, lists, and document revisions.
Yes, the diff tool works great for comparing code snippets, config files, and any line-based text.
No — all comparison runs entirely in your browser using JavaScript. Nothing is uploaded or stored.