About 3dbuilder.org

Your trusted resource for downloading and getting started with Microsoft 3D Builder on Windows.

Our mission is simple: make it easy for anyone to find, download, and set up Microsoft 3D Builder — even after Microsoft officially removed it from the Store.

Why This Site Exists

Microsoft 3D Builder was a popular, free 3D modeling and printing tool used by hobbyists, educators, 3D printing enthusiasts, and professionals worldwide. In July 2024, Microsoft officially deprecated the application and removed it from the Microsoft Store in most regions.

This created a problem. Thousands of people still rely on 3D Builder for everyday tasks — repairing STL files, combining 3D models, preparing prints, and teaching students the basics of 3D design. With the app gone from the Store, finding a safe and reliable download became difficult.

3dbuilder.org was created to fill that gap. We provide a clean, straightforward place to download Microsoft 3D Builder (version 20.0.4.0), along with detailed installation guides, system requirements, and answers to common questions.

What We Offer

  • Safe download links — Direct links to the official Microsoft 3D Builder installation packages (AppxBundle format)
  • Step-by-step installation guides — Clear instructions for installing the software on Windows 10 and Windows 11, including offline installation methods
  • System requirements — Verified hardware and software requirements so you know if 3D Builder will run on your PC
  • Feature overview — Detailed breakdown of what 3D Builder can do, from mesh repair to boolean operations
  • Troubleshooting help — Solutions to common installation errors and runtime issues
  • FAQ section — Answers to the questions people ask most about 3D Builder

Our Values

Accuracy

Every fact on this site is verified against official Microsoft documentation and real-world testing.

Safety

We only link to legitimate, verified download sources. No bundled adware, no misleading buttons.

Helpfulness

Our guides are written for real people, not search engines. Clear steps, honest answers, no filler.

Who We Are

3dbuilder.org is maintained by a small team of 3D printing enthusiasts and tech writers who have used Microsoft 3D Builder extensively. We noticed that after the deprecation, many users struggled to find reliable information and working downloads. We built this site to help.

We are not professional software developers, Microsoft employees, or corporate affiliates. We are users who wanted to preserve access to a useful tool and share what we know with the community.

Affiliation notice: 3dbuilder.org is an independent website. We are not affiliated with, endorsed by, or connected to Microsoft Corporation in any way. “Microsoft,” “3D Builder,” and “Windows” are registered trademarks of Microsoft Corporation.

Get in Touch

Found an error on the site? Have a suggestion? Want to report a broken link? We welcome feedback from the community. Visit our Contact page to send us a message. We do our best to respond within 1-2 business days.