Free tool

Text Diff Checker

Compare two text versions and mark the lines that were added or removed.

Private browser processingNo source files stored

Text Diff Checker

Choose a file or enter content. Processing stays in this browser.

Your selected files never leave this page.

Ready when you are

Add your file or content, then run the tool.

About Text Diff Checker

Compare two text versions and mark the lines that were added or removed.

Processing happens in your browser whenever the browser supports the requested operation, so your source file is not stored on our server.