The Best 6 Sites for Free CAD Models

Instead of designing everything from scratch, some websites offer a collection of thousands of premade 3D CAD models you can use in your design.

In this article, we’ll dive into the top platforms where you can discover and download free 3D CAD models. These sites provide a wide range of needs, from rapid prototyping to industrial designing.

1. GrabCAD

GrabCAD is one of the largest online communities for engineers, designers, manufacturers, and students to share CAD models, collaborate on projects, and access an extensive library of resources related to computer-aided design (CAD) and engineering. GrabCAD also offers professional services such as on-demand CAD modeling, simulation, and prototyping through its network of engineering partners.

2. TraceParts

TraceParts hosts a massive collection of CAD models from various industries, including mechanical, electrical, automotive, aerospace, and more. TraceParts collaborates with a wide range of vendors and manufacturers to guarantee that its CAD model library is comprehensive and up-to-date.

3. PARTcommunity

PARTcommunity is an online platform that serves as a centralized hub for sharing and accessing CAD models and related content. supports integration with different CAD software platforms, allowing users to seamlessly import downloaded CAD models into their design projects. This compatibility ensures that users can work efficiently within their preferred CAD environments.

4. 3DContentCentral

The official platform of Dassault Systèmes for 3D and 2D CAD Models of User-Contributed and Supplier-Certified Parts, Assemblies… 3DContentCentral maintains quality standards for CAD models to ensure accuracy and reliability. Uploaded models undergo verification and validation processes to confirm their suitability for use in engineering and design projects.

5. McMaster-Carr

McMaster-Carr is a renowned industrial supplier known for its extensive catalog of over half a million products across various categories, including mechanical, electrical, plumbing, hardware, and more. McMaster-Carr provides a user-friendly website that allows customers to easily search for products using keywords, part numbers, or categories.

The platform offers detailed product descriptions, specifications, and pricing information. McMaster-Carr has earned a strong reputation within the industrial supply market for its vast product range, reliable service, and commitment to customer satisfaction. Many professionals and businesses rely on McMaster-Carr as a trusted partner for their procurement needs.

6. Émile Maurin

Émile Maurin is a French company specializing in the distribution of mechanical components and industrial supplies. Émile Maurin typically offers an online catalog where customers can browse through their product offerings, view specifications, and request quotes. Additionally, the company may provide technical documentation, CAD models, and other resources to assist customers in their design and procurement processes.