What do you want to make today?
Describe the part you need, and PartForge designs it with you. Real parametric CAD, ready for your printer.
Free to start. After you hit send, sign in with Google, Apple, or email. Your prompt is saved.
- Real CAD, not a mesh
- Every forge is parametric. Change one number and the whole part follows.
- No CAD skills needed
- Describe it in plain words, or drop in a photo, a sketch, or a 3D file.
- Free to start
- No card, no install. It runs in your browser.
Made with PartForge
See all →What you get
Real parts, to the millimeter
Every forge is actual parametric CAD, not a mesh or a render. Parts that fit, gears that mesh, tolerances you can name. Export STL, STEP or 3MF, or open the source code directly.
What it is
CAD you can talk to
Every dimension stays a live, adjustable number. Say “make the blades 20 mm longer” and the whole design follows.
The process
From a sentence to a print
Four steps, from idea to real part.
- 01
Describe it
Words, a photo, a napkin sketch.
- 02
Watch it build
Live 3D, updated as you talk.
- 03
Dial it in
Every dimension is a slider.
- 04
Print it
STL, STEP or 3MF, straight out.
The library
No part starts from zero
Every forge published on PartForge becomes part of a shared library. When you describe a new part, our AI draws on what’s already been built, whether that means remixing an existing forge or using a proven assembly as a starting point – always within that forge's license.
- Remix any forge
- Open a published part and make it yours. Every parameter comes along, still live.
- Assemblies come solved
- Our AI reaches for gear trains, hinges, and threads that already work instead of reinventing them.
- Your work compounds
- Publish a forge and it becomes the next maker's head start.
- Your license holds
- Our AI only builds on forges whose license allows it. With your permission, it can use your own unpublished parts too.
Ready when you are
Your first forge is a sentence away.
Start a part