Text Difference Comparison

• Professional text-diff tool built on Monaco Editor. Paste your original text on the left and the text to compare on the right — the two panels update and show differences in real time as you type (no extra button needed).
• Highlights three kinds of changes: added lines (green), removed lines (red), and modified lines (yellow), so inline differences are easy to spot.
• Live statistics for both sides — byte count, word count, line count — plus the total number of removed and added lines. Handy buttons let you load a sample, swap the two sides, or clear everything.

1. Open the tool page — no download or installation required; the Monaco editor loads automatically.
2. Paste (or type) your original text in the left panel and the text to compare in the right panel. You can also click 'Load sample' to try it instantly.
3. Review the highlighted result in real time and check the stat cards at the top for removed and added line counts. Use 'Swap texts' to switch sides or 'Clear text' to reset.

• This tool is completely free and requires no sign-up.
• Everything runs locally in your browser — your text is never uploaded to any server.

Free online text difference comparison tool, based on Monaco Editor, supports difference comparison of text content such as code and documents, highlights added, deleted and modified content, supports real-time statistics of changed line counts, suitable for code version comparison, document proofreading and other scenarios.

Open the tool page — no download or installation required; the Monaco editor loads automatically. Paste (or type) your original text in the left panel and the text to compare in the right panel. You can also click 'Load sample' to try it instantly. Review the highlighted result in real time and check the stat cards at the top for removed and added line counts. Use 'Swap texts' to switch sides or 'Clear text' to reset.

This tool is completely free and requires no sign-up. Everything runs locally in your browser — your text is never uploaded to any server.

Yes, Text Difference Comparison is completely free. No download or installation required — it runs right in your browser.