CADability is a pure .net class library for modeling and analyzing 3d data, both with your code and interactively. It comes with an optional Windows.Forms user interface, which can be adopted to other environments. It does not refer to other 3d modeling libraries. For data exchange you can use STEP, STL or DXF files.
Cad GitHub Repositories (2026) · Open Source Tools
Discover the best Cad open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
A Full-Stack Robotics Development Environment
An agent-native CAD SDK for language models to create, inspect, and reconstruct complex, editable 3D models.
Exact B-Rep CAD in TypeScript, with a Claude Code plugin that lets agents write parts and check them on OpenCascade.
Persistent, editable objects for AI agents: researched part by part, honest about what is known, and carried into worlds, film, web, games, CAD and print.
git diff for CAD assemblies — two STEP files in, a picture of what changed plus a machine-readable change list out.
Clean-room reader for Autodesk Revit files (.rvt/.rfa/.rte/.rft) without Revit: metadata and schema of 2016-2026 files, and typed elements with measured geometry from Revit 2023 to 2025 projects (2015 to 2022, 2026 and 2027 experimental), exported as IFC4, glTF and plan SVG. Rust, Python, WebAssembly. Apache-2.0.
Create parametric 3D fusion reactor CAD and neutronics models
The open-source CAD engine for AI agents. One-line MCP setup for Kimi Code, TraeCode, WorkBuddy and ZCode. Stable object IDs, undoable transactions, DXF/KJD output. TypeScript + Rust/WASM.
Personal SolidCraft fork: a measured speed, memory and binary-size pass, with the harness that reproduces every number
Fast, free and open-source 3D model viewer for Android: STL, OBJ, 3MF, STEP, IGES. Section cuts, measuring, wall thickness, weight estimates. No ads, no tracking.
📐 Describe a part, get a printable model: a native macOS CAD studio powered by Claude Code / Codex and build123d.
ACT hardware description language and core tools.
This is an active mirror of the KiCad development branch, which is hosted at GitLab (updated every time something is pushed). Pull requests on GitHub are not accepted or watched.