Compare two texts and highlight what was added and removed.
The text diff checker compares an original and a changed text and highlights the differences: added lines in green, removed lines in red, with line numbers on both sides. Switch to word mode to see small edits inside a sentence.
Use it to review content changes, compare two versions of code, configuration or contracts, or find what changed between two copies of a page.
Spot changed lines or single changed words.
Ignore case and extra spaces.
Long unchanged parts are folded around the changes.
Both texts stay in your browser.
It finds the longest common sequence of lines or words; everything else is shown as added or removed.
Yes, line mode works well for code and configuration files.
Very long, very different texts may be too big to compare at once; split them into parts.
No, nothing is uploaded or stored.