Compare Texts

Compare Texts displays the differences between two blocks of text side by side, visually highlighting lines that were added, removed, or remained unchanged. Paste the original text in the left field and the modified version in the right field; the diff appears automatically below, with green lines for additions and red for removals.

To use it, fill in both text fields. The result shows each line prefixed with "+" for new lines, "–" for removed lines, and no prefix for identical lines. A summary at the top shows the number of lines added and removed, or confirms that the texts are identical.

This kind of comparison is useful in many everyday situations: verifying what changed between two versions of a contract or document; comparing expected and actual output from a script; checking whether a text was edited correctly after review; identifying differences between two API responses copied for analysis; comparing two versions of a prompt before publishing. It is a simplified version of the terminal "diff" command, accessible directly in the browser.

Processing happens locally, with no data sent to servers. Both texts remain on your device throughout the analysis. No account creation or installation is required.