Privacy

Your files do not leave this device

AvifUndo is a static website. The AVIF you drop is processed in your browser. We do not operate an upload API, image store, or conversion queue.

What the converter sees

The JavaScript in this page can read the file you chose, produce a JPEG or PNG blob, and (if you ask) a ZIP. Those blobs live in memory and in object URLs until you download them or close the tab. They are not posted to avifundo.com.

What the host sees

Cloudflare Pages (or any static host) will see a normal page request: IP address, user agent, and which HTML/JS/CSS files were fetched. That is request logging, not your photos. We do not attach image bytes to those requests.

Cookies and ads

AvifUndo itself does not set an account cookie. The layout includes reserved AdSense slots. If ads are enabled, Google may set cookies and collect standard ad-measurement data on page views — not the contents of files in the converter. ReviewGoogle’s privacy policy and useAds Settings to control personalized ads.

Analytics

This source tree does not ship an analytics tag. If an operator adds one later, it should be disclosed here. Prefer privacy-respecting, cookieless page counts if you fork the project.

Contact

Privacy questions: hello@avifundo.com or thecontact page.

Last updated 22 September 2026.