Compare text online free — diff two texts line by line with highlighted additions, deletions and changes. Ideal for code review and editing.
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Free online text diff tool that highlights additions, deletions, and changes between two texts with color coding.
Yes, it supports line-by-line comparison, ideal for code review.
Yes, no length limit — compare documents as long as browser memory allows.
Yes — after locating the lines that changed, the tool highlights only the words and characters that actually differ inside them. A sentence where a single comma or a single particle moved shows exactly where the change sits. Because whole lines are not painted over, this helps most in work where tiny edits matter, such as reviewing contract wording or checking a translation.
The comparison runs entirely inside your browser: what you type is never sent to a server and never stored. Refresh the page and it is gone. That makes it safe for material your policies forbid uploading to outside services — draft contracts, unpublished manuscripts or snippets of proprietary code.