Privacy

Your files

Files you open on this site are never uploaded. There is no server that receives them. Conversion happens in your browser, on your own machine, using code that was downloaded to your device along with the page.

This is not a policy promise that you have to take on trust. You can check it. Open your browser’s developer tools, go to the Network tab, and convert a file. You will see no request carrying your file.

When you close or reload the page, the file is gone from memory. We do not keep a copy, because we never had one.

What we store on your device

Nothing that identifies you. This site does not use browser local storage or session storage. Your settings are not saved between visits, which is a deliberate trade: it means there is nothing about you sitting in your browser after you leave.

This site sets no cookies. There is no advertising and no analytics, so there is nobody else’s cookie to set either.

Analytics

This site does not include any analytics script. We do not track individual visitors, build profiles, or record what you convert.

Our hosting provider, Cloudflare, keeps standard server logs of requests for security and reliability. These contain things like the page requested, the time, and a truncated network address. They are held by Cloudflare under their own privacy terms and we do not join them to anything else.

Third parties

Content delivery networks

Some formats need a large piece of compiled code to read. That code is downloaded from jsDelivr, a public open-source code network, and only when you open a file that needs it. jsDelivr sees the request for that code file, as any web server does. It does not receive your 3D file.

Advertising

There is no advertising on this site at the moment. No ad network loads on any page, and none can: the site’s security policy blocks them.

That may change, because running the site costs money. If it does, this page will be updated before the first ad appears, and it will say which provider is used and what it may store on your device. In regions where consent is required, you will be asked first.

Links to other services

Some pages list 3D printing, laser cutting or CNC services. These are ordinary links. We have no affiliate arrangement with any of those services and earn nothing if you use them.

Children

This site is a tool for working with 3D files and is not directed at children. We do not knowingly collect information from anyone.

Your rights

Because we do not collect personal information, there is generally nothing for us to show you, correct, or delete. If you have written to us by email, that email exists in our mailbox, and you can ask us to delete it.

Changes

If this policy changes in a way that affects you, the change will be described on this page. The current version applies from the date this page was last updated: 24 September 2026.

Contact

Questions about this policy can go to mhrahimi.work@gmail.com, or through the contact page. 3DToolBench is an independent project, not a company.