Source is parametric CAD in your browser, built from the ground up so branch, diff, and merge, real-time multiplayer, and an AI copilot aren’t add-ons — they’re the architecture. Model real parts today; own every file, forever.
Parametric modeling is live today · version control, collaboration & AI rolling out · Mac, Windows, Linux, Chromebook
Why Source
Everything the desktop giants make hard — installs, licenses, file wrangling — Source makes effortless.
It’s a URL, not a 12 GB download. Open Source on any computer — even a Chromebook — and pick up right where you left off.
Branch, diff, and merge designs like code. Every change tracked and recoverable — the end of naming files part_final_v3.
Share a link, not a file. Teammates model, review, and comment on the same part together, live — no email attachments.
Describe the change; Source builds valid geometry, grounded in a real modeling engine — not hallucinated. Humans, scripts, and AI share one design API.
Designs are yours in an open, portable format. No proprietary lock-in, no Parasolid tax, no ransom the day you decide to leave.
Model instantly in the browser; heavy compute runs in the cloud and returns the exact same result every time — cacheable, shareable, dependable.
Roadmap
Each phase ends at a demoable, tested milestone — never “six months of plumbing, then maybe.” Naming before the feature tree hardens; curved booleans are the long pole.
Rust workspace, WASM↔native determinism, own-code exact predicates, and the validity + golden-test harness.
B-rep topology + Euler operators, NURBS curves & surfaces, the own-code 2D constraint solver, and adaptive tessellation to the viewport.
Extrude / revolve, own-code polyhedral booleans producing named B-rep, and STL + glTF export.
The parametric promise: edit an upstream feature and every downstream fillet, chamfer and cut re-resolves to the intended entity.
Curved B-rep booleans and analytic surface offset now build on a parametric core — constraints, patterns, holes, equations, and mass properties. Own-code NURBS surface–surface intersection is the ongoing frontier.
STEP AP242 import and export land the first exact-solid interop. The assembly instance graph and out-of-core streaming for million-part scale come next.
Start creating
Open a browser tab and model your first part in seconds — free, no install, no credit card.