CodePen CodePen by CodePen Inc. is an online code editor and front-end development playground that makes it easy to prototype, build, and share web experiences. Loved by designers, developers, and educators, CodePen combines a clean interface with real-time previews, community…

DesignSpark Mechanical DesignSpark Mechanical is a free, intuitive 3D CAD software designed for engineers, designers, and makers who need fast and accurate mechanical modeling. Built on direct modeling principles, it allows users to create complex 3D parts and assemblies without…

Jsbin JSBin by Remy Sharp is a lightweight, browser-based code playground designed for quick HTML, CSS, and JavaScript experimentation. Built with speed, simplicity, and sharing in mind, JSBin is ideal for front-end developers, educators, and support teams who need to…

jsFiddle jsFiddle by Piotr Zalewa is a lightweight, browser-based code playground that allows developers to quickly test, debug, and share front-end code. Known for its simplicity and speed, jsFiddle is a go-to tool for experimenting with HTML, CSS, and JavaScript…

OpenJSCAD OpenJSCAD is a browser-based, script-driven 3D modeling tool designed for developers, engineers, and makers who prefer coding over clicking. Powered by JavaScript, OpenJSCAD enables precise parametric modeling through code, offering full control over geometry generation and customization. Ideal for…

SelfCAD SelfCAD is a comprehensive, browser-based 3D modeling software that combines modeling, sculpting, and 3D printing tools into one intuitive platform. Designed for beginners, students, and professionals alike, SelfCAD simplifies the 3D design process without sacrificing power, making it perfect…

Shapr3D Shapr3D is a revolutionary CAD solution that brings the power of professional 3D modeling to your fingertips—literally. Designed for iPad, Mac, and Windows, Shapr3D offers a touch-first, intuitive interface combined with robust modeling capabilities powered by Siemens’ Parasolid engine.…

SolveSpace SolveSpace is a free, open-source parametric CAD tool that combines 3D modeling, 2D drafting, and mechanical simulation in a compact, efficient package. Designed for engineers, designers, and hobbyists who need precision and control without the bloat, SolveSpace offers constraint-based…

Tinkercad Tinkercad is a free, web-based 3D design, electronics, and coding platform designed for beginners, students, and educators. With its intuitive drag-and-drop interface, Tinkercad makes it easy to create 3D models, circuit simulations, and even basic programming projects—perfect for anyone…