Text Comparison Tool
Score how similar two texts are, word by word.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Compares two passages and reports a similarity percentage based on shared word sequences, along with the words that appear only in one version. It complements the line-based diff by showing whether a rewrite kept the original meaning.
How to use it
- Paste the original version and the revised version.
- Press Compare to compute the overlap score.
- Review unique words and copied phrases.
Frequently asked questions
How is similarity calculated?
Shared word bigrams are compared against the total, which is more sensitive to reordering than a simple word-frequency overlap.
Is this a plagiarism checker?
No. It compares only the two texts you provide and has no database of published content.
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