Free Text Diff Compare
Paste two versions of text and instantly see the differences highlighted with additions, deletions, and changes. Powered by jsdiff, an open-source text diffing library with over 9,000 GitHub stars and 92 million weekly npm downloads. All processing happens locally in your browser — no signup, no server, no data sent anywhere.
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Why Use a Text Diff Tool?
Comparing two versions of text by eye is slow and error-prone — you will miss subtle word changes, deleted sentences, and rearranged paragraphs. This text diff tool highlights every addition, deletion, and change instantly, so you can see exactly what is different between two versions without reading both line by line.
The tool is powered by jsdiff, the most widely used JavaScript diff library with over 9,000 GitHub stars and 92 million weekly npm downloads. It implements the Myers diff algorithm — the same algorithm used by git — to produce minimal, accurate diffs at the word and line level. Green highlights show additions, red shows deletions.
Use it to compare drafts of documents, review AI-generated text against the original, check configuration changes, proofread edits, or verify what changed between two API responses. All comparison happens locally in your browser — your text is never uploaded or stored anywhere.
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How It Works
Paste or type the original text on the left and the modified text on the right.
See differences highlighted instantly — green for additions, red for deletions.
Review changes line by line or word by word.
Key Features
Privacy & Trust
Use Cases
Frequently Asked Questions
Limitations
- Best suited for plain text comparison
- Does not support syntax-aware diffing for code
- Very large texts may slow the comparison
