Online Text & Code Diff Checker
Powerful, private, and instant text and code comparison tool. Highlight additions, deletions, and modifications in split side-by-side or unified inline views. Supports line-by-line, word-by-word, and character-by-character analysis with unified diff patch export. Zero server uploads guarantee 100% privacy.
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How to Compare Text & Code in 3 Steps
Paste Texts
Paste your original text/code in the left pane and the modified version in the right pane.
Choose View Mode
Select Side-by-Side (Split) or Unified inline view, and set the diff granularity (lines, words, chars).
Review & Copy
Inspect highlighted differences in real-time and copy the diff report or download a .patch file.
Frequently Asked Questions
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