Chrome Extension Privacy Policy
Last updated: 24 August 2026
Short version
- The MiniPx extension collects no data of any kind. No accounts, no identifiers, no analytics, no telemetry, no crash reports.
- Your images never leave your browser. They are read from disk, processed in memory on your own machine, and written back only when you download them.
- The extension makes no network requests of its own, with one disclosed exception: when you right-click an image and pick MiniPx, it fetches that one image so it can process it. Nothing at startup, nothing else while you work, nothing in the background.
- One permission is optional and is requested only at the moment you right-click an image and ask MiniPx to do something with it.
What data is collected
None. There is no category of personal or sensitive user data that this extension collects, transmits, sells or shares. Specifically, and using the Chrome Web Store's own categories: no personally identifiable information, no health information, no financial or payment information, no authentication information, no personal communications, no location, no web history, no user activity, and no website content beyond the image file you explicitly hand to a tool, which is never transmitted.
There is no account system in the extension, no licence check, no sign-in, and nothing that would identify one installation from another.
What the extension does with your images
Images you select, drag in, or send from the right-click menu are decoded in a worker thread inside the extension and re-encoded using WebAssembly codecs that are packaged in the extension itself. Nothing is uploaded. There is no server component. The finished file is handed back to you as a download from your own browser.
Files are held in memory for as long as the tab is open, plus a short-lived entry in the extension's own IndexedDB used only to carry files from the popup to the tool tab. That entry is deleted as soon as the tool tab has read it. Nothing is retained after that.
You can verify all of this the same way you can verify the website: open DevTools, switch to the Network panel, compress an image, and watch that nothing leaves.
Permissions, and exactly what each is for
- contextMenus — adds the two MiniPx entries to Chrome's right-click menu when you right-click an image. It grants no access to page content by itself.
- storage — stores three settings: your default output format, your default quality preset, and your light or dark theme choice. These live in Chrome's own synced storage. They contain no personal data and are never transmitted to us, because there is nowhere for them to be transmitted to.
- Host access to the current site (optional) — requested only when you right-click an image and choose a MiniPx action, and only for the site that image is on. It is used for exactly one thing: reading the bytes of that one image so the extension can process it. It is not requested at install time. Declining it leaves every other feature working, and you can drag the image onto the popup instead. Chrome lets you revoke it at any time from the extension's details page.
The extension deliberately does not request: tab access, browsing history, cookies, downloads, identity, clipboard read, or access to all sites at install time.
Remote code
The extension executes no remotely hosted code. Every script and every WebAssembly binary it runs is packaged inside the extension and reviewed by the Chrome Web Store before it reaches you. Nothing is fetched and evaluated at runtime.
Tools that open minipx.com
Some tools in the list open a page on minipx.com in a new tab rather than running inside the extension: the background remover, the upscaler, the passport photo maker, OCR, the PDF tools, HEIC and camera RAW conversion, vectorising, favicon generation and GIF tools. The extension opens the URL and does nothing else. It does not send your file with it, and it does not attach any identifier to the link beyond a plain campaign tag that says the visit came from the extension.
Once you are on minipx.com, the website's own privacy policy applies, including its account for analytics and consent on the site.
Children
The extension collects no data from anyone, of any age. It is not directed at children and has no age-gated functionality.
Changes to this policy
If a future version of the extension changes what it accesses, this page is updated in the same release, the date at the top changes, and the Chrome Web Store listing is updated to match before that version is published. A permission that is not described on this page is not one the extension has.
Single purpose
The extension has one purpose: processing image files that you give it, on your own machine, and linking to the MiniPx tools that cannot run inside an extension.
Contact
Questions about this policy, or about anything the extension does: contact@minipx.com. The extension landing page describes what it does in less formal language.