Openharness

Judgement

What it is

Developer tool

What it does

A command centre for running many coding agents (Claude Code, Codex, Cursor and others) across machines side by side, extended to CAD, PCB, robotics and music projects.

Adopt it when

You run several AI coding agents on multiple machines and want one place to supervise them.

Watch out

Three months old and pre-1.0; agents act with your machine's permissions.

Ready for

Experimental

Runs as

Desktop app and command line

Built with

TypeScript, Dart and C

How established

New: started 3 months ago, latest release v0.5.27_cli.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Openharness → TypeScript → Go → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to Openharness

1. 1
   FreeCAD FreeCAD

   Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

   Complete system Production-ready Engineers, makers or small firms need free parametric CAD without SolidWorks or Fusion licences.

   ★ 35k LGPL-2.1 C++ Active, pushed today
2. 2
   Editor pascalorg

   Open-source 3D architectural editor with a local CLI, MCP tools, and practical workflows for humans and AI agents.

   Complete system Usable You want to sketch building layouts in 3D and let AI agents help.

   ★ 25k MIT TypeScript Active, pushed today
3. 3
   Text-to-cad earthtojake

   Design physical products with AI

   Integration Experimental You design simple mechanical parts and want an AI agent to produce manufacturable files.

   ★ 25k MIT Python Active, pushed today
4. 4
   SolidCraft tangency-labs

   SolidCraft: an open-source parametric 3D CAD application built in pure Rust. Desktop, web, and automation through MCP.

   Complete system Experimental You want to try a new open parametric CAD tool for hobby parts.

   ★ 13k Apache-2.0 Rust Active, pushed today
5. 5
   CADAM Adam-CAD

   CADAM is the open source text-to-CAD web application

   Complete system Usable Makers want quick printable parts from a description and simple parameter tweaks.

   ★ 5.4k GPL-3.0 TypeScript Active, pushed 19 days ago
6. 6
   Chili3D xiangechen

   A browser-based 3D CAD for AI-assisted, parametric and direct modeling.

   Complete system Usable You want real B-rep CAD in a browser without installing anything.

   ★ 5k AGPL-3.0 TypeScript Active, pushed yesterday
7. 7
   SolveSpace solvespace

   Parametric 2d/3d CAD

   Complete system Production-ready You want a small, fast constraint-based CAD tool for simple mechanical parts.

   ★ 4.2k GPL-3.0 C++ Active, pushed 2 days ago
8. 8
   Atopile atopile

   Design circuit boards with code! ✨ Get software-like design reuse 🚀, validation, version control and collaboration in hardware; starting with electronics ⚡️

   Developer tool Usable Your hardware team wants software-style reuse, validation and version control for electronics.

   ★ 4k MIT Python Active, pushed 19 days ago

Commercial 3D modeling and CAD software

1. 1
   AutoCAD Autodesk

   Computer-aided design and drafting software

   Complete system Production-ready You produce technical drawings in architecture, engineering or construction and must exchange DWG files with others.

   3.7k readers a month Since 1982 Commercial
2. 2
   SketchUp Trimble Inc.

   Architectural 3D modelling CAD software

   Complete system Production-ready Architects, builders or designers need quick 3D concept models rather than full engineering CAD.

   3.5k readers a month Since 2000 Commercial
3. 3
   Autodesk Maya Autodesk

   3D computer graphics software

   Complete system Production-ready You work in or train for film, TV or game animation pipelines where Maya is the expected tool.

   2.7k readers a month Since 1998 Commercial
4. 4
   SolidWorks Dassault Systèmes

   Desktop software for 3D modeling

   Complete system Production-ready A manufacturing or product engineering business designs mechanical parts and wants the most common desktop CAD for hiring and suppliers.

   1.9k readers a month Since 1995 Commercial
5. 5
   Onshape PTC

   Onshape is the most customizable production CAD system. Cloud-native CAD and built-in PDM with AI-powered customization, on any device, with zero IT required.

   Complete system Production-ready A product team wants mechanical CAD without installs or file juggling, and values branching and real-time collaboration.

   800 readers a month Commercial
6. 6
   Autodesk Fusion Autodesk

   Computer-aided design (CAD) software application

   Complete system Production-ready A small manufacturer, startup or maker wants design and CNC toolpaths in one affordable package.

   699 readers a month Since 2013 Commercial