Your files never leave this tab.
Last updated: October 10, 2026
The short version
- Your images are compressed in your browser and never uploaded to our servers — because we don’t have servers that receive them.
- No accounts, no cookies, no analytics, no tracking pixels, no ads.
- The only copies of your files are the ones on your own device.
How compression works here
When you drop in a JPEG, it is processed locally on your device using WebAssembly image codecs (the Squoosh/jsquash family, including a MozJPEG-based JPEG encoder). Your photos go from your disk, through your browser’s memory, back to a download — there is no pipe they could leak through.
What stays on your device
To move your images from the upload step to the editor, your browser temporarily keeps them in its own local storage (IndexedDB) on your device. This data never leaves your machine. It is removed when you clear the queue with the Clear button, or whenever you clear the site’s browsing data.
A service worker also keeps a local cache of this site’s pages and its codec files (fetched from esm.sh) in Cache Storage so the tool can keep working offline — that cache holds code and pages, never your images. A short notice about rejected files is kept in sessionStorage for the current tab and removed once the editor reads it.
What we don’t collect
- No image content, filenames, or compression settings — we never see them.
- No accounts, emails, or personal details — there is nowhere to enter them.
- No analytics or tracking — none are configured, so nothing about your visit is measured or sent anywhere. The event hooks in our code ship disabled; no endpoint is set.
- No cookies set by us.
Third parties your browser contacts
The page loads compression codecs from the esm.sh CDN. When your browser fetches those files, that provider necessarily sees standard request metadata (such as your IP address), governed by its own privacy policy. Your image bytes are not part of those requests.
This site is hosted on Cloudflare Pages, which necessarily processes standard request logs — your IP address, the page requested, and browser details — to deliver pages and prevent abuse. The site has no upload endpoint, so your images are never part of those requests.
Children
This is a general-purpose utility with no accounts and no data collection, suitable for all ages. We do not knowingly collect information from anyone, children included.
Changes & contact
If this policy ever changes, the updated version will be posted here with a new date. Questions: [email protected]