Text Compare
Compare two passages of prose with word-level highlighting, side-by-side or unified view.
Free & unlimited
Text A
Text B
Layout
Granularity
0 / 0
All processing happens in your browser. No data is sent to any server.
About this tool
- 1
Enter the first text
Paste or type the reference text in the left panel.
- 2
Enter the second text
Paste or type the comparison text in the right panel.
- 3
View the analysis
See the similarity percentage, highlighted matching sections, and difference breakdown.
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Explore the details
Toggle between word-level and character-level comparison for different granularity.
- Use this tool to check for plagiarism by comparing a submission against the original source.
- Enable case-insensitive comparison when capitalization differences are not meaningful.
- The similarity score is based on the longest common subsequence algorithm for accurate results.
- For long documents, the summary view shows the overall match percentage without scrolling through every line.
- Calculates overall similarity percentage
- Highlights matching and differing sections in both texts
- Word-level and character-level comparison modes
- Case-sensitive and case-insensitive options
- Ignores whitespace differences when enabled
- Check document similarity for plagiarism detection
- Compare essay drafts to see how much content changed between revisions
- Verify that a paraphrased text is sufficiently different from the original
- Analyze overlap between two product descriptions or marketing copy
The score is based on the ratio of matching content to total content, using the longest common subsequence (LCS) algorithm for accuracy.
The diff tool shows line-by-line changes between two versions of the same document. Text compare focuses on overall similarity scoring and matching sections, useful for comparing unrelated texts.
Yes. The tool handles large texts efficiently, though extremely long documents (100K+ words) may take a moment to analyze.