🔀 Compare PDFs WASM

Diff two PDF files and see every change — line-level and word-level. Side-by-side or unified view.

Text comparison: This tool compares the text content of your PDFs. Both PDFs need a real text layer — scanned PDFs must be run through OCR first.

Choose Two PDFs

Click either slot to select a file, or drag one in. Comparison starts automatically once both are loaded.

AOriginal

or click to browse

BModified

or click to browse

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Processing…0%

Lines A

Lines B

Unchanged

Added

Removed

-0

Modified

Similarity

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Show only changes Ignore case Ignore whitespace

100% private. Nothing was uploaded.

Click slot A and slot B to select your files.

Every difference is found and highlighted automatically.

Toggle modes, jump between changes, then export.