Text Compare
Paste two versions of any text and instantly see every added, removed and unchanged line — colour-coded for clarity. Free, private, no account needed.
Colour-Coded Diff
Added lines green, removed lines red, unchanged grey — readable at a glance without any learning curve.
Change Statistics
See exactly how many lines were added, removed and unchanged. Useful for tracking the scale of document revisions.
One-Click Swap
Swap original and modified texts instantly. Compare in both directions without re-pasting anything.
100% Private
Both texts stay entirely in your browser. Nothing is ever sent to any server — safe for confidential documents and code.
⭐ User Reviews
📖 How to Use the Text Compare Tool
Paste Original Text
Add your original (older) version into the left box. Works with plain text, code, config files or any text content.
Paste Modified Text
Add the updated version into the right box. Both boxes support any length of text — no character limit.
Click Compare
Hit Compare Texts and the diff appears instantly with colour-coded lines and a summary of all changes.
Review & Act
Review the highlighted differences. Use Swap to reverse direction, or Clear All to start a fresh comparison.
🎯 Other Text Tools
All tools are free, instant and run entirely in your browser.
❓ Frequently Asked Questions
🔗 Related Tools
💡 Why Use Our Text Compare Tool?
Instant Visual Clarity
Green, red and grey colour-coding makes every change immediately obvious — no reading required to spot differences.
Change Metrics
Added, removed and unchanged line counts give you a quantified summary of how much changed between versions.
Bidirectional Swap
One click reverses the comparison direction. Check both perspectives without re-pasting any content.
Zero-Upload Privacy
Both texts processed entirely in your browser. Safe for confidential contracts, proprietary code and sensitive documents.
Instant Results
Results appear in milliseconds regardless of text length. No processing queue, no server round-trip, no delay.
Free, No Limits
Unlimited comparisons, any text length, no account required. Free forever with no watermarks or restrictions.
📚 Complete Guide — Text Compare Tool
When and Why You Need to Compare Texts
Text comparison (a "diff") identifies exactly what changed between two versions of text. Common use cases include:
- Legal and contracts — identify clause changes between drafts without reading both versions fully
- Code review — spot what changed in a code snippet or config file between two versions
- Document editing — track changes made by collaborators or between exported versions
- Content updates — verify only the intended changes were made to a webpage or article
- Data validation — confirm two exports are identical, or find exactly where they differ
Popular queries: compare two texts online text diff checker find differences in text online diff tool free
Understanding the Diff Output
| Colour | Symbol | Meaning |
|---|---|---|
| Green | + | Line exists in modified text but not in original — it was added |
| Red | − | Line exists in original but not in modified — it was removed |
| Grey | = | Line is identical in both texts — unchanged |
Tips for Best Results
- Ensure both texts use the same line-ending format (CRLF and LF are handled automatically)
- For code, paste from the same indentation level in both boxes
- For contracts, copy from the same document section in both boxes
- Use Swap to verify changes look correct from both directions