Text Diff Checker

Find differences between two text blocks quickly with highlights.
Original text
Runs in your browser
Modified text
Diff result
0 changes
Added lines are green, removed lines are red.

      
Privacy note: comparison happens locally in your browser.

What this diff checker does

It compares two text blocks line by line and highlights additions and removals.

When to use it

Use it for reviewing content edits, config changes, or code snippets quickly.

Limitations

This is a lightweight diff and may not catch complex moves or reorders.

How to compare text

Paste two texts and click Compare.

  1. Paste the original text on the left.
  2. Paste the modified text on the right.
  3. Click Compare to view differences.

FAQ

Does this tool upload my text?
No. Everything runs locally in your browser.
Is it word-level or line-level?
It highlights line-level changes for clarity.
Can I compare long files?
Yes, but very large inputs may be slower.