Replaces AutoCAD · DraftSight · BricsCAD
2D drafting in the browser: precise drawing, dimensions, hatching, layers, blocks and DXF.
Puter Parametric: a free, open-source SolidWorks alternative
Parametric 3D part modelling: constrained sketches, features and an editable history tree.
- Engineering
- Free · MIT
- Runs in the browser
- No sign-up needed
- alpha
From the official README: this app is in early alpha. Features may change and data could be lost — don’t rely on it for real work yet, and keep copies of anything important.
What is Parametric?
Parametric models solid parts the way mechanical engineers expect: draw constrained 2D sketches, turn them into extrudes, revolves, fillets, shells and patterns, and change any dimension to rebuild the part. The OpenCascade kernel runs in WebAssembly. It can open SolidWorks .sldprt and STEP files and has an AI design assistant.
Key features
- Constrained sketches with Smart Dimension and a live solver
- Extrude, revolve, sweep, loft, fillet, chamfer, shell and holes
- Linear and circular patterns, mirroring
- Opens SolidWorks .sldprt and STEP files
- AI assistant that builds and edits parts from a description
How to use it
- Open parametric.puter.com in any modern browser — computer, tablet or phone.
- Start right away — no sign-up. Sign in with a free Puter account only if you want to save to the cloud.
- Want to self-host or hack on it? Run it locally (Node.js 22.12 or newer):
git clone https://github.com/HeyPuter/everything.git
cd everything/src/parametric
npm install
npm run devMore engineering apps
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BIM in the browser: walls, doors, floors, roofs and stairs, with every view from one model.
FAQ
Is Parametric free?
Yes. Parametric is part of the Everything Project and its source code is published on GitHub under the MIT license. There is no subscription or trial.
Do I need to install Parametric?
No. Open parametric.puter.com in the browser on your computer, tablet or phone.
Do I need an account to use Parametric?
Not required. It works straight away and keeps data in your browser or on your device; sign in with a free Puter account to save to the cloud.
Can Parametric replace SolidWorks?
Not fully yet. Parametric is in alpha: features will change, and its README asks you not to rely on it for real work or important data. Try it out, and keep backups of anything important.
Summarised from Parametric’s README in the official repository. CraftSuite is an independent, unofficial guide and is not affiliated with Puter; SolidWorks, Autodesk Fusion and Autodesk Inventor are trademarks of their respective owners.