CompassCAD

What it does

CompassCAD is very simple to learn and master. You don't need to waste a buck, unlike AutoCAD does. It's always free, open source and active for you to use. Create architectural marvels today from the desk of your room, or in your office, today!

• 
  FreeCAD 1.1Mar 2026 · wiki.freecad.org · ▲218

  Extremely powerful, completely free 3D CAD modeling

• CA
  Chili3d – A open-source, browser-based 3D CAD application2025 · ▲408

  I'm currently developing Chili3D, an open-source, browser-based 3D CAD application. By compiling OpenCascade to WebAssembly and integrating Three.js, Chili3D delivers near-native performance for powerful online modeling, editing, and rendering—all without local installation. Access it here: https://github.com/xiangechen/chili3d Features: Modeling Tools: Create basic shapes (boxes, cylinders, cones, etc.), 2D sketches (lines, arcs, circles, etc.), and perform advanced operations (boolean operations, extrusion, revolution, etc.). Snapping and Tracking: Precisely snap to…

• 
  Open-sourcing our text-to-CAD app2025 · github.com · ▲179

  Hey HN! I'm Zach from Adam (https://adam.new/). We’re building an AI co-pilot for mechanical CAD software. As part of our broader research, we built a browser-based Text-to-CAD app (https://news.ycombinator.com/item?id=44182206) and are now open sourcing it. This is a React SPA with a Supabase backend. What it does: * Generates parametric 3D models from natural language descriptions, with support for both text prompts and image references * Outputs OpenSCAD code with automatically extracted parameters that surface as interactive sliders for instant dimension…

• 
  agentcadJun 2026 · agentcad.dev · ▲110

  A CAD design tool for coding agents (free + open source)

• 
  DSLCad – a programming language and interpreter for building 3D models2023 · github.com · ▲198

  Hey HN. Over the last half a year I have been working on a 3D CAD programming language called DSLCAD. Today I am here to show my first release! It is heavily inspired by OpenSCAD which got me hooked on the idea of a CAD programming language and what it can do. Please let me know what you think. Ill be in the thread to answer any questions you may have.

• LP
  LuaCAD – Parametric CAD Scripted in LuaAug 2026 · luacad.ad-si.com · ▲106

  LuaCAD models solids in Lua rather than the OpenSCAD language, with operator overloading for CSG (`a + b`, `a - b`, `a * b`). It ships with a CLI and a desktop app, including a preview area and a text editor. I've always been a big fan of OpenSCAD, but the SCAD language itself is unfortunately quite cobbled-together and is a very poorly designed programming language. LuaCAD takes all the good parts of OpenSCAD and combines them with one of the best scripting languages. It has now completely replaced OpenSCAD for me, and I think it provides a better experience than OpenSCAD for all use cases.…

• 
  /dev/null▲490

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

• 
  Wispr Flow▲2,732

  Speak naturally, write perfectly & 3x faster in every app

  AI · 2024 · wisprflow.ai

• 
  Pathway▲1,335

  Get user insights 10x faster

  Work · 2024 · wynde.io

• 
  BeforeSunset AI 2.0▲1,267

  Personalized AI daily planning that suits your life

  AI · 2024 · beforesunset.ai

• 
  Osmos▲1,194

  Match with like-minded professionals for 1:1 conversations

  Growth · 2024

• 
  Carrot Care▲1,168

  Understand & optimise your bloodwork

  Life & fun · 2024 · carrotcare.health

• 
  Polar▲1,167

  An open source monetization platform for developers

  Dev tools · 2024 · polar.sh