Private browser image processing, explained.

The traditional model, and its problem

Most online image tools are upload services: your file travels to their server, gets processed there, and a result comes back. Even when the operator is honest, your file existed - however briefly - on infrastructure you don't control, subject to logging, backups, breaches, and subpoenas you'll never hear about. For photos with GPS data, client work under NDA, or documents like contracts, that's a real cost for a trivial task.

What GenClean does instead

Modern browsers contain a complete image pipeline: they can decode, transform, and re-encode images at native speed via the canvas API. GenClean ships its tools as code to your browser, and the work happens on your CPU:

• Your file is opened with the browser's file picker and held only in the tab's memory.
• Decoding, transforming, and re-encoding run locally - including the HEIF decoder and Mozilla's pdf.js renderer, which we bundle and self-host.
• The result is written straight to your downloads. Closing the tab releases everything.

There is no upload step to secure, no processing queue to clear, no stored copy to delete. The category of risk is removed rather than managed.

Verify it - don't trust it

• Open your browser's developer tools, switch to the Network tab, and process an image. You'll see the page's assets load - and no file data leave.
• Load a tool page, turn off Wi-Fi, and keep working. Local processing doesn't need a connection.
• Check the Metadata Cleaner's report: it reads your file's EXIF locally and shows you exactly what it found.

What does touch the network

Honesty matters here: the page itself, its scripts, anonymous usage analytics, and ads on the free tier all load over the network like any website. What never touches the network is the thing that matters - your files. That's the line, and it's verifiable. Read more in our privacy policy and security overview.

Try it

Start with the Image Converter, the Compressor, or browse all tools - every one of them free for single files, no account needed.