As CAD technology continues to evolve, more design tools are moving from traditional desktop applications to browser-based platforms. Browser-based CAD software offers a more accessible way to create, edit, and review 2D drawings and 3D models without installing a full desktop application. This can be particularly useful for architects, interior designers, students, and design teams working across different devices and operating systems.
In this guide, we explore the best free online CAD software in 2026, comparing their availability, key features, and ideal use cases. Whether you are looking for free CAD software for architectural modeling, 2D drafting, 3D design, or space planning, these platforms offer free plans or free versions worth exploring.
#1. Onshape
Onshape is a powerful browser-based platform for professional 3D modeling. It uses a parametric workflow and supports assemblies, collaboration, and version control, making it suitable for more advanced design projects.
Available on: Web browsers on Windows, macOS, Linux, and ChromeOS; mobile apps are also available
Free plan: Yes, with limitations for non-commercial use
Key features: Parametric 3D modeling, assemblies, real-time collaboration, version control, cloud storage
Best for: Engineers, product designers, architects working with detailed 3D components, and students
Because Onshape runs primarily through a browser, users do not need to install a traditional desktop CAD application, making it easier to work across different operating systems.
#2. Tinkercad
Tinkercad is a beginner-friendly 3D modeling tool from Autodesk. Its simple shape-based interface makes it easy to create basic models without learning a complex professional CAD workflow.
Available on: Web browser; compatible with major desktop operating systems through supported browsers
Free plan: Yes
Key features: Basic 3D modeling, shape-based design, 3D printing, electronics simulation
Best for: Beginners, students, educators, hobbyists, and simple 3D concepts
Tinkercad runs in a browser, making it easy to access across devices. While it lacks some advanced features of professional CAD design programs, it remains a practical choice for beginners exploring 3D modeling.
#3. SketchUp Free
SketchUp Free is a browser-based version of SketchUp designed for accessible 3D modeling. For architects and interior designers exploring free CAD for architectural design, it can be useful for developing building concepts, interiors, furniture, and spatial studies.
Available on: Web browser on supported Windows and macOS environments
Free plan: Yes, for non-commercial use
Key features: 3D modeling, Push/Pull modeling, 3D Warehouse, basic import/export
Best for: Architects, interior designers, students, and conceptual architectural design
Because the free version runs through a web browser, users can avoid installing the full desktop application and switch between compatible computers more easily.
#4. BranchCAD
BranchCAD is a lightweight browser-based 2D drafting platform for creating and viewing technical drawings online. It is designed for users who want a simpler alternative to traditional desktop drafting applications.
Available on: Web browser; designed to work across major operating systems with a supported browser
Free plan: Yes
Key features: 2D drafting, drawing and viewing tools, collaboration, online project management
Best for: 2D drafting, students, simple technical drawings, and lightweight design workflows
Its browser-based approach reduces operating-system dependency and eliminates the need for a traditional desktop installation, making it a practical option for users looking for free 2D drafting software and CAD online free solutions.
#5. SelfCAD
SelfCAD combines browser-based 3D modeling with tools for 3D printing. Its interface is designed to make 3D modeling more accessible to beginners while still providing a range of useful modeling features.
Available on: Web browser, Windows, and macOS; browser-based access reduces dependence on a specific desktop operating system
Free plan: Yes, with limited features
Key features: 3D modeling, sculpting, shape generators, 3D printing preparation
Best for: 3D printing, product concepts, hobbyists, and beginners
The web version is particularly convenient for users looking for free 3D modeling software that can be accessed without relying exclusively on a desktop installation.
#6. AutoCAD Web
AutoCAD Web brings AutoCAD drafting workflows into a browser, allowing users to view, edit, and share DWG drawings online.
Available on: Web browser on supported Windows and macOS environments; mobile access is also available
Free plan: Limited free access; full functionality requires a subscription
Key features: DWG viewing and editing, 2D drafting, markup, file sharing
Best for: Architects, engineers, contractors, and professionals working with DWG files
For architecture teams working across different devices, the browser-based version can simplify access to drawings without requiring every computer to have the full desktop application installed.
#7. SmartDraw
SmartDraw is primarily a diagramming and floor-planning tool rather than traditional engineering CAD. However, it can be useful for architects and designers who need to create simple layouts quickly.
Available on: Web browser; accessible from major desktop operating systems through supported browsers
Free plan: Limited free access/trial
Key features: Floor plans, diagrams, templates, symbols, scaled drawings
Best for: Simple floor plans, space planning, presentations, and non-specialist users
Its browser-based workflow makes it convenient for teams that need to create or review simple layouts from different devices.
#8. Planner 5D
Planner 5D is an online home and interior design platform that allows users to create 2D floor plans and 3D spaces directly in a browser.
Available on: Web browser, Windows, macOS, iOS, and Android
Free plan: Yes, Basic plan with limitations
Key features: 2D floor plans, 3D visualization, furniture placement, materials, room layouts
Best for: Interior designers, homeowners, space planning, and early-stage architectural concepts
Its multi-platform availability makes it convenient for users who move between desktop computers, tablets, and mobile devices during the design process.
#9. Floorplanner
Floorplanner is a browser-based tool focused on floor plans, interior layouts, and basic 3D visualization. It allows users to develop plans without installing traditional desktop CAD software.
Available on: Web browser; accessible across major operating systems through supported browsers
Free plan: Yes, Basic account
Key features: 2D floor plans, 3D visualization, furniture library, room layouts
Best for: Architects, interior designers, real estate professionals, and space planning
Because the platform runs online, it can be easier to access and share projects across different computers without worrying about installing the same desktop application on every device.
Comparison of Free Online CAD Software
Different projects require different types of digital design tools. A mechanical designer may need parametric modeling, while an architect may prioritize 3D massing, floor plans, materials, and spatial relationships.
| Software | Best For | Main Use |
| Onshape | Engineers, product designers, students, and professionals | Parametric 3D modeling, product design, assemblies |
| Tinkercad | Beginners, students, and hobbyists | Basic 3D modeling, simple objects, 3D printing |
| SketchUp Free | Architects, interior designers, students, and beginners | Architectural modeling, interior design, 3D massing |
| BranchCAD | Design professionals, students, and beginners | 2D drafting, technical drawings, design documentation |
| SelfCAD | Beginners, hobbyists, and 3D artists | 3D modeling, product concepts, 3D printing |
| AutoCAD Web | Architects, engineers, contractors, and design professionals | DWG editing, 2D drafting, drawing review |
| SmartDraw | Beginners, architects, interior designers, and business users | Floor plans, diagrams, space planning |
| Planner 5D | Interior designers, homeowners, and beginners | Floor plans, interior layouts, 3D room design |
| Floorplanner | Architects, interior designers, real estate professionals, and beginners | Floor plans, space planning, 3D room visualization |
Summary
Browser-based CAD tools make digital design more accessible by reducing installation and operating-system limitations. For users searching for CAD software no download, web-based platforms can provide a convenient way to work without installing a full desktop application. Whether you need 2D drafting, 3D modeling, architectural concepts, or interior planning, the platforms above offer different free options for various skill levels and workflows.
For architects and designers, free tools can be especially useful during the early stages of design development. When you need to turn CAD models and concepts into realistic presentations, professional 3D visualization and rendering can help bring the final design to life. Looking for professional architectural visualization support? Contact us to discuss your project and explore the right solution for your needs.
Foxe is a senior 3D artist and the Art Director at AIMIR CG. He has over 12 years of experience in the ArchViz industry. Outside of work, he loves art, ice creams, and reading.