Compare two texts and highlight additions, deletions, and changes
The Text Diff Checker is a practical comparison tool that helps you quickly spot differences between two blocks of text. Whether you are reviewing code changes, comparing documents, or auditing content, it helps you get the job done more efficiently.
It compares text line by line and highlights added, removed, and changed content, so you can see the differences at a glance. It also offers swap and copy-result features for deeper analysis and processing.
Everything runs locally — your data is never uploaded. The clean, intuitive interface needs no technical background to use.
Compares both texts line by line and clearly shows the differences in each line.
Highlights added, removed, and changed content in different colors.
Swap the contents of the two text boxes in one click for easier comparison.
Everything runs locally; your data is never uploaded.