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Text Similarity Checker for Character and Word Overlap
Compare two short passages by character edit distance and shared terms. Adjust how case, whitespace and punctuation count, then inspect the words in common.
Compare text
LOCALIn both
a · is · lesson · plan · this
Only in first
None
Only in second
new
These scores measure text structure, not meaning or plagiarism.
Getting started
Paste two passages, choose case, whitespace and punctuation rules, then inspect both scores and unique words.
Before you use the result
The scores are mechanical similarity measures, not plagiarism or semantic equivalence judgments. Each text is limited to 2,000 characters.
Try an example
Compare a revised product description with the original to see changed words and character edits.
How it works
Character score uses Levenshtein edit distance; term score uses distinct-word overlap, with Han characters treated individually.
Frequently asked questions
Compare two passages by character edits and shared words with adjustable normalization.
How do I use Text Similarity Checker?
Paste two passages, choose case, whitespace and punctuation rules, then inspect both scores and unique words.
Does this tool upload my data?
Inputs and files are processed in your browser. Page-view analytics do not contain your tool input.
What should I check before using the result?
The scores are mechanical similarity measures, not plagiarism or semantic equivalence judgments. Each text is limited to 2,000 characters.