Free Text Diff Checker Online
Compare two text blocks or code files side-by-side with highlighted additions, deletions, and modifications. Supports char-level and word-level diff modes. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Paste Original Text
Enter original text in the left pane.
Paste Modified Text
Enter modified text in the right pane.
Select Diff Mode
Choose line-level, word-level, or character-level comparison.
View Highlighted Diff
See additions in green, deletions in red, and unchanged content in gray.
Frequently Asked Questions
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