Text Diff Checker
Compare two blocks of text and see the lines that were added or removed.
Spotting what changed between two versions of text by eye is slow and unreliable. Text Diff Checker compares two blocks line by line and highlights exactly what was added and removed, so you can see the differences at a glance.
How to use text diff checker
- 1. Paste the original text and the changed text.
- 2. The lines added or removed are highlighted.
- 3. Review the differences.
When to use Text Diff Checker
Compare two drafts
See what changed between versions of a document or message.
Review edits
Check exactly which lines someone added or deleted.
Spot config changes
Compare two config or data snippets to find the difference.
Frequently asked questions
Does it compare line by line?
Yes — it highlights the lines that differ between the two blocks, showing additions and removals.
Can it handle large texts?
It works well for typical documents and snippets; very large inputs depend on your device.
Is my text private?
Yes — the comparison runs entirely in your browser.