Text Diff Checker
Compare two blocks of text or code online for free — everything runs in your browser.
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Diff Tools
Mode
Original text · A
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Compare text · B
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Diff Result
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{
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"name": "format-codes",
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"version": "1.0.0",
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"version": "1.1.0",
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"private": true,
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"license": "MIT"
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"author": "FormatCodes"
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}
+2-2Unchanged 4Local browser comparison · No files uploaded
How It WorksText
Overview
This text diff checker compares two blocks of text or code and supports three granularities — line, word, and character — highlighting additions and deletions in different colors. You can ignore case or whitespace differences, and export the result as a standard unified diff patch for sharing or applying with git. Everything runs locally in your browser; your content never leaves your device.
Use Cases
Compare code changes between two versionsCheck whether a config file change matches expectationsSpot differences before and after editing a documentQuickly generate a shareable diff patch
Steps
123
Paste or uploadChoose a diff modeReview the results