3 Open Source Alternatives To AutoCAD

The best 3D Modelling tools similar to AutoCAD

FreeCAD stands out as a leading open-source alternative to AutoCAD. For those seeking different features or workflows, we've curated a comprehensive list of AutoCAD alternatives, each offering unique strengths.

Notable mentions in the AutoCAD alternative space include: OpenSCAD, Solvespace.

The AutoCAD ecosystem primarily consists of 3D Modelling solutions. Explore these alternatives to discover tools that align with your specific AutoCAD-related requirements, whether you're looking for enhanced features, different user experiences, or specialized functionalities.

FreeCAD iconFreeCAD

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FreeCAD screenshot

FreeCAD is an open-source parametric 3D modeler designed to help you create real-life objects of any size. With its parametric modeling capabilities, you can easily modify your design by revisiting your model history and adjusting its parameters.

  • Parametric Modeling: Easily modify designs by changing model parameters.
  • 2D to 3D Conversion: Sketch geometry-constrained 2D shapes and use them as a base for 3D objects.
  • Multi-Platform: Available on Windows, Mac, and Linux.
  • File Compatibility: Reads and writes various open file formats like STEP, IGES, STL, SVG, DXF, OBJ, IFC, and DAE.
  • Customizable and Extensible: Highly customizable and extensible to fit various needs.
  • Diverse Applications: Suitable for product design, mechanical engineering, and architecture.
  • Advanced Tools: Equipped with Finite Element Analysis (FEA) tools, experimental CFD, BIM, Geodata, CAM/CNC workbenches, and a robot simulation module.

FreeCAD is designed to cater to a wide range of users, including hobbyists, programmers, experienced CAD users, students, and teachers. It truly is a Swiss Army knife of general-purpose engineering toolkits.

OpenSCAD iconOpenSCAD

7,187
OpenSCAD screenshot

OpenSCAD is a powerful software tool designed for creating solid 3D CAD objects. It is particularly popular among programmers and engineers for its script-based approach to 3D modeling. OpenSCAD is free and open-source, available for Linux/UNIX, MS Windows, and Mac OS X.

  • Script-Based Modeling: OpenSCAD uses a script-only approach, allowing users to create 3D models through descriptive code.
  • Cross-Platform: The software is available for Linux/UNIX, MS Windows, and Mac OS X, making it accessible to a wide range of users.
  • Library Support: OpenSCAD offers a variety of libraries to extend its functionality, enabling users to include complex shapes with minimal coding.
  • Extensive Documentation: Comprehensive tutorials, books, and a cheat sheet are available to help users get started and master the software.
  • Community-Driven: OpenSCAD has a vibrant community that contributes to its development and offers support through various platforms like libera.chat and Mastodon.

In conclusion, OpenSCAD is an excellent choice for anyone looking to create solid 3D CAD objects through a script-based approach. Its cross-platform availability, extensive documentation, and active community make it a versatile tool for both beginners and experienced users.

Solvespace iconSolvespace

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Solvespace screenshot

SOLVESPACE is a free, open-source parametric 2D/3D CAD tool licensed under GPLv3. It is designed for creating and modifying 3D models with precision and ease. Applications include creating mechanical parts, assemblies, and 2D vector drawings, among others. Whether you're a professional engineer or a hobbyist, SOLVESPACE offers a robust set of tools to bring your designs to life.

  • Parametric Modeling: Create and edit models using parameters and constraints, ensuring design precision and flexibility.
  • 2D and 3D Capabilities: Work seamlessly with both 2D sketches and 3D models for a comprehensive design experience.
  • Assembly Modeling: Combine multiple parts into assemblies, complete with constraints and motion simulation.
  • Export Options: Export your designs to various formats including STL for 3D printing, DXF for 2D vector drawings, and more.
  • Scripting and Automation: Use Python scripts to automate repetitive tasks and enhance productivity.

SOLVESPACE is an excellent choice for anyone needing a versatile and powerful CAD tool. Its open-source nature ensures continuous improvement and community support, making it a reliable option for all your design needs.