Fast technical ideation
Open link, sketch, share
Start with dimensions, constraints, and real geometry instead of screenshots, rough arrows, or long explanation threads.
Technical sketching between whiteboards and CAD
OnSketch
Open a link, sketch precise geometry, and share a technical idea before anyone has to open a heavyweight CAD workflow.
No install
Precise constraints
Shareable snapshots next
The lightweight layer before formal CAD.
Use OnSketch when a whiteboard is too vague and SolidWorks or Fusion is too much: concept reviews, maker iterations, packaging fit, mechanisms, and quick technical handoffs.
Async concept exchange
Versioned by design
Snapshots, comments, and forks should make it natural to review an idea later, propose a variant, and preserve the trail.
Browser-first communication
Built for mobile and tablet
No install, no local files to chase, no CAD crash recovery. The sketch is a shareable technical artifact from the start.
Sharing first, CAD later.
The account model should support lightweight exchange: public sketches for open collaboration, private libraries for teams and paid users.
Public concept sharing
$0 / month
- Save up to 3 public projects
- Share precise concept sketches by link
- Use import and export for local handoff
Private technical workspace
Unlimited private projects
- Save unlimited private projects
- Access sketches across devices and teams
- Use snapshots, comments, and forks as they land
Next product pass: collaboration primitives.
With the editor under /app, the backend should prioritize durable shared artifacts over enterprise CAD features.
1. Login and project library
Add Supabase auth, cloud saves, visibility, and the free public project limit.
2. Versioned snapshots
Save named states so teams can compare concept directions without losing context.
3. Comments and forks
Make async review natural: annotate, branch a variant, and send the result back as a link.