Text Diff Checker
Paste two versions of a text and see exactly what changed — word by word, line by line. Useful for contracts, code, translations, or any document review.
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Frequently asked questions
What is a text diff checker?
It compares two blocks of text and highlights the differences — additions, deletions, and unchanged lines — side by side for easy review.
Is my text uploaded to a server?
No. The comparison happens entirely in your browser. Your sensitive documents, code, or contracts never leave your device.
Can I compare long documents?
Yes. There is no practical length limit. The tool handles essays, legal contracts, code files, and even book chapters locally.
Does it show character-level differences?
Yes. The tool highlights differences at both the line level and the word/character level for precise comparison.