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Text Diff Checker
Compare two texts side-by-side
Added: 0Removed: 0
What is a Text Difference Checker?
Highlights additions, deletions, and changes between two text versions - essential for editing, contract review, and code comparison.
How It Works
Uses the Longest Common Subsequence (LCS) algorithm. Green = added, red = removed, yellow = changed. Word or character level diff.
Example
"The quick brown fox" vs "A quick red fox". Diff shows: "The" removed and "A" added; "brown" removed and "red" added.
Pro Tips
- Word-level diff is most readable for content comparison; character-level for code and data.
- Compare contract versions to instantly spot additions or deletions in legal language.
- Verify revised documents show only intended changes before submitting them.
- Useful for detecting unauthorised edits to shared or collaborative documents.
FAQ
What algorithm is used?▼
LCS or Myers diff algorithm - the same underlying approach used by Git for version control.
What is edit distance?▼
Minimum insert/delete operations to transform one text into another (Levenshtein distance).
Compare Word documents?▼
Use MS Word Track Changes, or paste plain text here for a clean side-by-side comparison.
Can it detect plagiarism?▼
For direct copying yes; paraphrased content requires dedicated tools like Turnitin.