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What is CAD software?
CAD, or computer-aided design and drafting (CADD), is technology for design and technical documentation, which replaces manual drafting with an automated process.
If you’re a designer, drafter, architect, or engineer, you’ve probably used 2D or 3D CAD programs such as AutoCAD or AutoCAD LT software. These widely used software programs can help you draft construction documentation, explore design ideas, visualize concepts through photorealistic renderings, and simulate how a design performs in the real world.
Our best-selling CAD software
Now when you subscribe to AutoCAD®, get access to AutoCAD 2D and 3D CAD software, plus industry-specific toolsets. Enjoy cross-platform workflows with the AutoCAD Web and Mobile apps.
AutoCAD web app
The new AutoCAD web app is included when you subscribe to AutoCAD and AutoCAD LT. With no install required, you can extend your workflows and view and edit your CAD drawings in a simplified interface from anywhere with an internet connection and a web browser.
Additional CAD software
Free CAD software
Free CAD software for students and educators
We offer free Autodesk software for students and educators. Use the same CAD software as top professionals around the world.
Free CAD software for nonprofits
Are you a nonprofit or entrepreneur working to create positive impact through design? See if you qualify for our Technology Impact Program.
How to choose CAD software
Browse resources for choosing the solution that satisfies your needs.
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Learning support
Autodesk offers tutorials, training materials, and the support of an engaged online community as you learn the software.
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Compare CAD software
Compare our AutoCAD products to help you choose the best software for your needs.
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Choosing for business
Evaluate your software needs, ask all the right questions, assess the top solutions, and secure the budget.
Which professions use CAD software?
Autodesk 2D and 3D CAD software is used by engineering disciplines across all industries. Explore how various professionals use CAD tools to improve processes—from concept to handover.
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Architects
Design and draft with CAD tools developed specifically for architects. Take your ideas from conceptual design to construction documentation within a single software environment.
AutoCAD Architecture Toolset (US site)
Revit (US site)
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Building engineers
BIM processes help structural engineers, detailers, and fabricators improve structural documentation, minimize errors, and streamline collaboration across teams to accelerate fabrication.
Revit (US site)
Navisworks (US site)
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Civil engineers
BIM for enhanced civil engineering design and construction documentation. Use intelligent, connected workflows to help enhance predictability, productivity, and your bottom line.
Civil 3D (US site)
InfraWorks (US site)
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Construction professionals
Digitize your construction site and connect project information from design to construction and handover.
Revit (US site)
BIM 360 Ops (US site)
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Mechanical engineers
Professional-grade design, simulation, and manufacturing solutions help mechanical engineers improve workflows, performance, and collaboration.
Fusion 360 (US site)
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Electrical engineers
Design and document electrical control systems with CAD tools created for electrical engineers. Automate common design tasks and facilitate drafting productivity.
AutoCAD Electrical Toolset (US site)
EAGLE (US site)
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Manufacturers
Efficiently machine, inspect, and fabricate quality parts, and reduce time to market.
HSM (US site)
Factory Design Utilities (US site)
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Car designers
Conceptualize, design, and render automotive designs (US site) using Class-A surfacing and professional rendering technology.
Alias AutoStudio (US site)
VRED (US site)
CAD for beginners: Tinkercad
Tinkercad is a free web-based CAD tool for hobbyists, teachers, and students of all ages. Make home decor, toys, Minecraft models, and more.
CAD in the cloud: Fusion 360
Fusion 360 is the first 3D CAD, CAM, and CAE tool of its kind. It connects your entire product development process in a single cloud-based platform that works on both Mac and PC.
CAD software resources and tutorials
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Download a free trial of AutoCAD and get started with these resources and guides.
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Get started with Inventor software with Learning Path guided tutorials.
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Explore several resources for getting started and continued education for Revit.
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Get news, tips, and insider resources straight from Autodesk staff.
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Get the most out of AutoCAD with popular classes for any level, from beginner to advanced.
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CAD Manager Center (US site)
Free resources, guides, and articles for CAD managers.