Free online tool to compare two PHP files and find difference.

Compare and find difference in two PHP files easily for free. Just paste or enter original and modified PHP code in respective editors and click 🔍 Compare button to get diff.
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How to compare PHP files/code side by side & View Diff

Copy the original PHP code in the block on the left and modified PHP code in the right block. Just click Check button to view side by side comparison.

Online PHP Diff Tool Features

Is this PHP diff Checker free?

Yes, this service is free and we don't save any data unless you explicitly ask us to save.

What are other features of this PHP Comparator?

  • This PHP diffing tool can show syntax highlighting for your comfort.
  • You can easily find all the occurances of particular string if you want to change them.


  • Privacy friendly: All text processing & comparison is done in your browser. Your data remains private.
  • Inline diff mode, word wraping, dark/high-contrast theme support.
  • Change statistics and line by line change navigator.
  • No installation. Works in all modern browsers.
  • Syntax highlighting & formatting for various programming languages.
  • 128-bit SSL/TLS encryption for uploaded/shared diffs.
  • Export diff as single PDF file in combined mode.