Sites to Download STL Files and Free 3D Models

In this article we will list some of the best 3D printing websites, STL file databases, and search engines to download 3D models. Some of the platforms we list even allow you to sell your own 3D printed designs. Not only are the platforms designed for designers, they will also be a good ally for mechanical engineers, scientists, medical professionals, or curious users.

GrabCAD Library

We will start with GrabCAD Library, a web platform that helps mechanical engineers create products professionally and easily. The library offers the possibility to download complex parts. The vast majority of 3D models are free, although some models are commercial. Apart from finding STL files, you will also have: 3D printing, GrabCAD Workbench, and GrabCAD Print.

Thingiverse

Thingiverse is without a doubt the largest database of STL files for 3D printing (more than two million). The page is very complete and its community is made up of great manufacturers who offer their own STL files in the different categories of the website.

Prusaprinters

Prusaprinters, apart from having a very good database of STL files that is compatible with all FDM machines, offers documents and tutorials for Prusa users (a new concept in FDM 3D printers).

YouMagine

YouMagine is a community website where users can upload and share 3D models to print (more than 16 thousand free models). All STL files and designs work with any fused filament fabrication machine.

NIH 3D Print Exchange

NIH 3D Print Exchange is a very good resource for Science, Technology, Engineering, and Mathematics professionals. From the website you can share, distribute, and download 3D models to print. In its database you will find more than eight thousand free STL files.

With these five websites to download STL files or 3D models, you will have several options to download the part you are looking for. Did they help you? Do you know more that haven't been listed? Share in the comments!