FreeCAD

FreeCAD is a lightweight and portable 3D CAD modeler designed for users of all skill levels. It packs a comprehensive suite of tools and configuration parameters into a user-friendly interface, allowing you to create detailed 3D models from the ground up. Its modular architecture means you can customize your workspace with specialized workbenches for tasks like architectural design, mechanical engineering, or product prototyping. Being portable, it runs directly from a USB drive without installation, offering flexibility and convenience. Whether you're a hobbyist, student, or professional, FreeCAD provides a powerful, free, and open-source platform to bring your design ideas to life.