Compare two texts and highlight the differences between them instantly.
A text diff checker is a free online comparison tool that highlights the exact differences between two pieces of text. Insertions are shown in green, deletions in red and unchanged text in normal colour — making it immediately clear what has changed between two versions of a document, code or any text.
Compare two drafts of a document to track what was changed, added or removed between revisions.
Compare two versions of source code to identify changes, debug differences or review a pull request.
Compare student submissions against original sources to identify copied passages.
Identify changes between two versions of a contract or legal document before signing.
'Diff' is short for difference. In computing, a diff shows the changes between two versions of a file — specifically what was added, removed or modified.
This tool compares line by line and word by word, highlighting the specific words that changed within each line.
Yes — paste any code into both text boxes and the tool will highlight exactly which lines or characters differ.
There is no hard limit. The tool can compare long documents, but very large texts may take slightly longer to process.