https://sketchfab.com/
With a community of over one million creators, we are the world’s largest platform to publish, share, and discover 3D content on web, mobile, AR, and VR.
https://www.tinkercad.com/3d-design
3D design is the first step in bringing your ideas to life. Start your journey to change how the world is designed and made today.
https://www.thingiverse.com/
Download millions of 3D models and files for your 3D printer, laser cutter, or CNC. From custom parts to unique designs, you can find them on Thingiverse.
https://3dwarehouse.sketchup.com/
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
https://3dviewer.net/
A free and open source web solution to visualize and explore 3D models right in your browser. Supported file formats: 3dm, 3ds, 3mf, amf, bim, brep, dae, fbx, fcstd, gltf, ifc, ige
https://www.blender.org/
Blender’s comprehensive array of modeling tools make creating, transforming and editing your models a breeze. VFX professionals say: “Probably the best tracker in the market”
https://www.printables.com/
Apr 12, 2014 · Community site for 3D printer users. Discover thousands of great printable 3D models, download them for free and read interesting articles about 3D printing.
https://www.figuro.io/
Figuro is a free online 3D modeling website for students, 3D hobbyists, artists, game developers and more. Use Figuro to create 3D models quickly and easily.
https://sketchup.trimble.com/en/plans-and-pricing/sketchup-free
SketchUp Free is the simplest free 3D modeling software on the web — no strings attached. Bring your 3D design online, and have your SketchUp projects with you wherever you go.
https://apps.microsoft.com/detail/9wzdncrfj3t6?hl=en-US&gl=CN
View, create, and personalize 3D objects using 3D Builder. Download many kinds of 3D files and edit them using wide range of powerful yet easy-to-use tools. Take a picture with you