This page explains what ExtStore Image Compressor does and does not do with your data, and the terms on which it is offered. It is a free, browser-based tool operated by ExtStore, and it is deliberately built so that it needs almost none of your data in order to work.
This is probably the most useful thing we can tell you, so it comes first. When you use this site, we do not:
The images you choose are read directly by your browser and processed on your own device, by WebAssembly code running inside the page. They are never transmitted to us or to anyone else.
This is a property of how the site is built, not merely a promise: there is no upload endpoint and no server-side component that could receive a file. Everything you see happens in the browser tab in front of you.
Your files stay in the tab's memory only while you are working. Closing or reloading the page discards them. Nothing is left behind on our side, because nothing ever reached our side.
To remember your preferences between visits, this site uses your browser's `localStorage` on this domain. It holds only the following:
This data stays on your device, is readable only by this site, and is never sent anywhere. You can remove it at any time by clearing site data for this domain in your browser settings — that only resets your preferences and does not affect any files.
This site is a set of static files hosted on Cloudflare Pages. Like any web host, it records standard technical data when a page or asset is served: IP address, user agent, requested URL, timestamp, and response status.
These logs exist to keep the site available and secure and to diagnose faults. We do not use them to profile visitors and we do not combine them with anything else — we hold nothing else to combine them with. They are retained by Cloudflare under its own operational policy; we do not export them or keep separate copies.
In some jurisdictions an IP address counts as personal data, which is why we mention this explicitly even though it is not something we set out to collect.
We keep third-party involvement to a minimum. The complete list is:
That is the entire list. In particular, web fonts are served from this domain, not from Google Fonts or any other font CDN: they are downloaded when the site is built and shipped with it, so viewing a page makes no request to a third-party font server.
We do not sell, rent, or share your personal information — we have none to sell, rent, or share.
Laws such as the GDPR and the CCPA give you rights to access, correct, delete, and port your personal data, and to object to its processing.
Because we keep no account and no personal records, there is normally nothing for us to look up, correct, or delete. The only data associated with you is the preference data on your own device, which you control directly and can erase by clearing this site's data.
If you nevertheless believe we hold information about you, or you wish to exercise a right in relation to the server logs described above, write to support@extstore.dev and we will respond. Please note that we may be unable to tie your request to any particular log entry — precisely because we do not track visitors.
This site is a general-purpose utility and is not directed at children. We do not knowingly collect personal information from anyone, children included.
If we change the way this site handles data, we will update this page and revise the effective date shown at the bottom. Material changes will be described here rather than made silently.
The following terms apply to your use of this site. If you use it, you accept them.
For questions about this page, or anything else about the site, reach us at support@extstore.dev.
We read every message and will reply as soon as we can.
Effective date: 2026-08-24