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What's 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 are a designer, drafter, architect or engineer, you have 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, visualise 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.
See how customers use CAD software
Tim Campbell, designer and principal of Studio Tim Campbell, uses AutoCAD as his CAD software tool of choice.
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 non-profit organisation or entrepreneur working to create a positive impact through design? See if you qualify for our Technology Impact Programme.
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 to 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.
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Building engineers
BIM processes help structural engineers, detailers and fabricators improve structural documentation, minimise errors and streamline collaboration across teams to accelerate fabrication.
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
Digitise your construction site and connect project information from design to construction and handover.
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.
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
Conceptualise, 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 Centre (US site)
Free resources, guides and articles for CAD managers.