Privacy policy

Last updated: October 2026

CompressJPEG is built so that there is nothing to leak. Image compression, resizing and conversion run entirely in your browser using WebAssembly. Your images are never transmitted, never stored, and never observed — they never leave your device.

What we receive

Nothing from your image files. We receive standard web-server request data used to deliver the page (your IP address transiently reaches our edge provider, as it does on every website), plus the aggregate analytics described below. We operate no image pipeline, no buckets, no processing API — there is no server that could receive your files.

Cookies & analytics

We use Google Analytics 4 (measurement IDG-V218GLBL4Q) to understand aggregate traffic and improve the site. Google Analytics may set analytics cookies and receive information such as your approximate location, device and browser details, referring page, and the pages you visit. We do not send your images, filenames, or compressed output to Google Analytics.

You can block analytics cookies in your browser or with a content blocker; the compression tools continue to work. SeeGoogle's privacy policyfor details.

We run no ad networks and no fingerprinting.

Your data on your device

Files you drop into the tool are held in your browser's memory only for the processing session. When you close or refresh the tab, they are gone. Compressed copies exist solely wherever you save them.

Children

The service is not directed at children under 13, and we do not knowingly collect personal information from them.

Changes to this policy

If we change how data is handled, this page will be updated before the change takes effect.

Contact

Questions about this policy: [email protected]