Gliora

Text diff checker

Text diff checker

 

Compare two texts line by line: red = removed, green = added. Runs in your browser.

This text diff checker compares two texts line by line and instantly shows you what was added, removed or changed.

Spot the differences at a glance

Paste your original text on one side and the new version on the other. Removed lines appear in red and added lines in green, so you can quickly review edits to code, articles, configuration files or any other text.

FAQ

How does the comparison work?
It compares both texts line by line and highlights lines that were removed (in red) and lines that were added (in green), using a longest-common-subsequence diff.
Is my text uploaded anywhere?
No. The comparison runs entirely in your browser — nothing is sent to a server.
Does it detect changes within a line?
It works at the line level: a modified line shows up as one removed line and one added line, rather than highlighting the specific words that changed.