Polymend

Privacy

Last updated: Oct 5, 2026

Polymend is built so that there is nothing to collect. Your model is repaired on your own device and is never sent anywhere.

The short version

Your files

When you choose or drop a file, it is read by the page running in your browser and repaired there. It is not uploaded. The repaired file is created on your device and saved by you. When you close the page, nothing of your model remains with Polymend, because nothing was ever sent.

No analytics

Polymend has no analytics of any kind. It does not count visits, record what you click, log which files you open, or build any history of how the tool is used. Nothing like that is collected, so nothing like that is stored, by Polymend or by anyone on its behalf.

What the page stores on your device

One thing: if you switch between the light and dark themes, your choice is saved in your browser so the page looks the same next time. It never leaves your device, and you can clear it by clearing this site's data in your browser.

What the hosting provider sees

One thing is outside Polymend's control. The site is delivered by Cloudflare, and like every web host, Cloudflare's servers receive your IP address and basic details about your browser when your browser asks for the page. Cloudflare may keep those for a time to keep its service secure and reliable, and it keeps its own totals of traffic to every site it serves, such as how many requests arrived. That record belongs to Cloudflare's systems, not to Polymend. Polymend adds nothing to it, puts no measuring script in the page, and does not use it to identify or follow anyone. Cloudflare's privacy policy describes how it handles that data.

How the "no upload" promise is enforced

The page carries a security policy that tells your browser to block it from making any network connection. That is a rule your browser enforces, not just a statement. The project also has automated checks that fail if anyone tries to add analytics, outside scripts or anything else that could send data.

Open source

All of Polymend's code is public under the MIT license at github.com/heyhaigh/polymend. Anyone can read it to confirm what is written here.

Links to other sites

This site links to GitHub and to heyhaigh.ai. Those sites have their own privacy practices.

Children

Polymend does not knowingly collect information from anyone, including children.

Changes

If this policy changes, the new version will be posted here with a new date. Because the code is public, its history is too.

Questions

Open an issue on GitHub, or reach Ryan Haigh through heyhaigh.ai.

Created by Ryan Haigh