Replaces AutoCAD · DraftSight · BricsCAD
2D drafting in the browser: precise drawing, dimensions, hatching, layers, blocks and DXF.
Puter Circuits: a free, open-source Altium Designer alternative
Schematic capture and PCB layout in the browser, with DRC, autorouter, 3D view and Gerber export.
- Engineering
- Free · MIT
- Runs in the browser
- 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 Circuits?
Circuits is a free, open-source alternative to Altium Designer. Draw schematics from a built-in library of 100+ parts, update the board, route tracks interactively or with the autorouter, pour copper, run design rule checks and inspect the board in 3D. Export Gerber X2, drill files, BOM and pick-and-place, and import KiCad projects.
Key features
- Schematic capture with multiple sheets and 100+ parts
- Interactive routing, vias, copper pours and an autorouter
- Online design rule checks
- 3D board view
- Gerber X2, Excellon, BOM, pick-and-place; KiCad import
How to use it
- Open circuits.puter.com in any modern browser — computer, tablet or phone.
- Sign in with a free Puter account; your data is saved in your own Puter cloud storage.
- 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/circuits
npm install
npm run devMore engineering apps
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Parametric 3D part modelling: constrained sketches, features and an editable history tree.
Replaces Autodesk Revit · ArchiCAD · Vectorworks
BIM in the browser: walls, doors, floors, roofs and stairs, with every view from one model.
FAQ
Is Circuits free?
Yes. Circuits 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 Circuits?
No. Open circuits.puter.com in the browser on your computer, tablet or phone.
Do I need an account to use Circuits?
A free Puter account. Your data is stored in your own Puter cloud storage.
Can Circuits replace Altium Designer?
Not fully yet. Circuits 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 Circuits’s README in the official repository. CraftSuite is an independent, unofficial guide and is not affiliated with Puter; Altium Designer, Autodesk Eagle and OrCAD are trademarks of their respective owners.