OpenDocScan

What it is

OpenDocScan is a free document scanner that works entirely in your web browser. It uses your device's camera to photograph documents, then automatically finds page edges, straightens perspective, cleans lighting, and performs optical character recognition to create searchable, multi-page PDFs.

All processing happens locally on your device using code written in Rust and compiled to WebAssembly. No documents are uploaded to servers, no account is required, and the resulting PDFs have no watermarks or page limits. The text recognition currently supports English and writes an invisible searchable layer behind the page image.

The scanner works offline after the initial page load and can be added to your home screen to function like a native mobile app. The entire source code is open source under MIT or Apache-2.0 licenses. Native apps for iPhone, iPad, and Android are in development using the same scanning core.

Questions from the bench

Is it free, including the text recognition (OCR)?

Yes. Every feature is free, including text recognition, with no page limit, no watermark, no trial, and no account. There is no paid tier.

Are my scans uploaded anywhere?

No. Everything happens in the browser tab and nothing is uploaded. You can verify this yourself by opening developer tools, switching to the Network panel, and scanning a page.

Does it work offline?

Yes. Once the page loads, it keeps working with no connection, including the text recognition which normally requires a server.

Do I need an account?

No. Nothing is behind a sign-in. There is an optional account that carries credits across the apps, but your scans are stored in your browser and never part of it.

Which languages does the text recognition read?

English today. The recognized text is written as an invisible layer behind the page image. Pages in other languages get no searchable layer but the page image is unaffected.