Compare PDF

New

Compare two PDFs locally.

Runs in your browserIn: PDFOut: TXT

Runs in your browser — your file never leaves your device.

Drop two PDFs here, or browseCompares page count, file size, and selectable text locally

Files to compare

0/2 selected

PDF 1

PDF 2

Private

Both PDFs stay in your browser.

Text diff

Uses embedded selectable text; scanned pages need OCR first.

Honest

This is not a pixel-perfect visual comparison.

About this tool

Compare two PDFs in your browser by page count, file size, and selectable text. Scanned pages need OCR first; this is not a pixel-perfect visual diff.

This tool processes files entirely on your device. Nothing is uploaded to a server.

How it works

1Open the tool and pick your PDF file — it stays on your device.
2Choose your options.
3Run the tool in your browser.
4Save the result to your device.

Common questions

Is my file uploaded when I use Compare PDF?

No. This tool runs entirely in your browser with WebAssembly and browser APIs — the file stays on your device from start to finish.

Does Compare PDF work offline?

Not fully — the page and its processing engine load over the network, with the engine fetched when you first use the tool. After that, the processing itself runs entirely on your device, and a dropped connection does not interrupt work in progress.