Compare Two PDFs — free, private, in your browser

Diff two PDF versions — text changes highlighted side by side. Unlike iLovePDF or Smallpdf, nothing is uploaded: the processing happens on your own device, so the tool works even with the Wi-Fi off.

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How it works

  1. 1Drop the old and new versions onto the page
  2. 2Press Compare
  3. 3Review the highlighted differences

Questions

Are my files uploaded?

No. CommandEditor runs entirely in your browser with WebAssembly — your file never leaves your device. You can verify it: open your browser's network inspector, or switch off Wi-Fi after the page loads; the tool still works.

Text or visual diff?

Both — a text-level diff here, and pixel-perfect Visual PDF Comparison as a separate tool for layout changes.

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