Privacy policy

This policy explains what information 3D Printer Wiki (3dprinterwiki.org) collects when you use the site, how it is used, and the choices you have. If you have questions, write to hello@3dprinterwiki.org.

Files you open with the tools

The tools process files inside your web browser. When you open a 3D model, image, drawing or G-code file, it is read and converted on your own device, and the result is saved back to your device as a download. Your files are not uploaded to our server and we do not store them. If you email us a file to report a problem, we use it only to investigate that problem and delete it afterwards.

Settings stored in your browser

Some tools remember the values you entered, such as your filament price or printer power in the cost calculator, so you don't have to type them again. These values are stored in your browser's local storage on your device only. You can remove them at any time by clearing your browser's site data for 3dprinterwiki.org.

Statistics

We use Google Analytics to understand how the site is used, for example which tools are popular and which pages people find through search. Google Analytics uses cookies and collects information such as the pages you visit, the time spent on them, your browser and device type, and an approximate location derived from your IP address. We also record simple events such as "a file was converted to STL", without the file itself or its name. We use this information only in aggregate to improve the site.

You can block Google Analytics with the Google Analytics opt-out browser add-on or by blocking cookies in your browser.

Advertising

The site is funded by ads served by Google AdSense. Google and its partners use cookies to serve ads based on your previous visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet.

You can opt out of personalised advertising in Google's Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalised advertising at www.aboutads.info. More information about how Google uses data from sites that use its services is available at policies.google.com/technologies/partner-sites.

Visitors from the European Economic Area, the United Kingdom and Switzerland are asked for consent before advertising and statistics cookies are used, through a consent message provided by Google. You can change your choice at any time from the link shown with that message.

Cookies in short

• Necessary: none are required to use the tools.
• Statistics: Google Analytics cookies, as described above.
• Advertising: Google AdSense and partner cookies, as described above.
• Preferences: local storage for tool settings on your device.

Emails

If you write to us, we receive your email address and your message. We use them only to reply and keep the correspondence as long as needed for that. We do not send newsletters and do not sell or share email addresses.

Children

The site is not directed at children under 13, and we do not knowingly collect personal information from them.

Your rights

Depending on where you live, you may have the right to access, correct or delete personal data held about you, or to object to its use. Because we hold very little personal data ourselves, most requests concern Google's services, which you can manage through your Google account and the links above. For anything held by us, such as emails you sent, contact us at the address above.

Changes to this policy

We may update this policy when the site or the services it uses change. The date at the top shows when it was last updated.

Updated November 2026 · How these tools work