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://3dwarehouse.sketchup.com/
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
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://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.autodesk.com/?msockid=2a569cf27b5c61c4337b8b8d7a7760d7
Autodesk is a leader in 3D design, engineering and entertainment software. We help people imagine, design, and create a better world.
https://makerworld.com/en
Download thousands of 3D models and stl models for free, and your No.1 option for multicolor 3D models.
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://cults3d.com/
Discover and download the best 3D models for all your projects: 3D printing, CNC machining - Laser cutting, Papercraft & Origami, Sewing pattern, and Electronics - PCB.