A free SelfCAD alternative: OwlCAD’s full browser editor is free, with editable parametric history, edge fillets, exact dimensions, solid STEP export, and private-by-default cloud projects.
OwlCAD’s full modeling editor is free — parametric history, real fillets, exact dimensions, solid STEP, and private-by-default cloud projects. It exports print-ready files for your slicer (it doesn’t slice itself).
Free editor · Private by default · No install
OwlCAD focuses on modeling and print preparation rather than bundling a slicer — and the full editor is free to use.
Scrub back to any sketch, boolean, or dimension and the model rebuilds downstream — change a parameter without starting the shape over.
Round or bevel single edges with fillets that hold their radius, type exact lengths and angles, and measure between any two points.
Export a true solid STEP (B-rep) for the parts you build, plus STL, 3MF, OBJ, GLB, and SVG — handoff to mechanical CAD, not just meshes.
Projects are private the moment you make them, autosave to the cloud, and keep a version history you can roll back. Share only when you choose to.
Watertight checks, hollowing, auto-orient, and fit-to-printer, then print-ready STL or 3MF for your slicer — Cura, PrusaSlicer, or Bambu Studio.
Modeling, import, and export cost nothing; only AI generation is part of Pro. SelfCAD is freemium across the board.
Open it in your browser, keep your designs private, and export for any slicer.
Yes — OwlCAD is browser-based 3D modeling and its full editor is free, where SelfCAD is freemium. Only OwlCAD’s AI generation is paid; modeling, import, and export are free.
An editable parametric history you can scrub and retro-edit, real edge fillets and exact dimensions, solid STEP export, and projects that are private by default with cloud version history.
No — OwlCAD focuses on modeling and print-aware preparation (watertight checks, hollowing, auto-orient, fit-to-printer), then exports print-ready STL or 3MF for your slicer of choice, such as Cura, PrusaSlicer, or Bambu Studio.
Yes — nothing to install, on any modern browser, and you can start without an account.