Question 1

How does this text diff tool work?

Accepted Answer

Paste your original text in the left box and the modified text in the right box, then click Compare. The tool uses a longest common subsequence algorithm to identify additions (green), deletions (red), and unchanged lines (gray).

Question 2

Can I compare word-by-word differences?

Accepted Answer

Yes. Use the view mode selector to switch between line-level and word-level diff views. Word-level view highlights individual word changes within each line.

Question 3

Is there a size limit for text comparison?

Accepted Answer

The tool supports up to 1,000 lines per text input. All processing happens locally in your browser for privacy and speed.

Question 4

Is this text comparison tool free?

Accepted Answer

Yes, completely free with no signup required. Your texts are never sent to any server — all diffing happens in your browser.

Paste two texts above and click Compare