Text Diff Checker
Compare two blocks of text and see exactly what changed — added and removed lines, highlighted.
Differences+2−2
−Filexora is a free tool site.
+Filexora is a free online tool site.
All tools run in your browser.
−Nothing is uploaded.
+Your files stay private.
🔒 Compared on your device
How to compare texts
- Paste the original. On the left.
- Paste the changed version. On the right.
- Read the diff. Added and removed lines are highlighted.
Frequently asked questions
How does the diff work?
It compares your two texts line by line using a longest-common-subsequence algorithm, then marks added and removed lines. It runs in your browser.
What do the colours mean?
Green lines with a plus were added in the changed text; red lines with a minus were removed from the original. Unchanged lines are shown plainly.
Can I compare code or config?
Yes. Any text works — paragraphs, code, configuration or logs. The comparison is line-based.
Is my text uploaded?
No. The comparison happens entirely in your browser.