cad

Your agent,
in your CAD.

Free for Mac. Open kernel. No account.
Sketch, model, draw and print yourself, or watch your agent do it in your window and check its own work.

Download for Mac Source on GitHub

Free · no account · macOS · auto-updates

Animation of vcad.app: an agent adds a boss under a cover, vcad checks a 3 mm clearance receipt, then you can drag the boss height yourself.
Illustration of vcad.app ·

A real CAD app, not a demo.

60.00h 26.00
modeling

model directly

Fusion-style selection and orbit. Press-pull with live dimensions. Sketches with inference, smart dimensions and trim/extend. History you can reorder, suppress and roll back.

80.0040.00A–AL BRACKET1:1REV APDFDXF
drawings

one click to a sheet

Front, top and section views with dimensions, a BOM and a title block. Export to PDF or DXF.

orientsliceprint→→
fabrication

orient, slice, print

Send a part to your printer without leaving vcad. No slicer hand-off.

✓ mated · 0 clashesexploded
assemblies

huge assemblies, fast

Mates, interference checks and exploded views. Import and export STEP. A Voron 2.4 opens in 22 seconds.

10:0210:0710:1210:17nowrestore 10:12autosaved · every change✓ crash recovery · safe save
files

never lose work

Every change autosaves. Browse version history, restore any point, and recover after a crash. Saves are atomic.

photo.jpg40.0editable features
experimental

image to CAD

Start from a photo of a part. vcad proposes an editable model you can dimension and change. Early, and labelled that way in the app.

Examples

Models built in vcad, loaded live in this tab. Drag to orbit.

mechanicalstirling-engine source ↗Ten parts, four materials, a flywheel on a joint
roboticsk1-humanoid source ↗22 DOF, simulated standing in physics
electronicspcb-motor source ↗Printed-coil stator between two rotors
electronicspcb-stator source ↗The coil board: schematic, copper, solid
electronicsfpga-board source ↗Designed end to end by an agent, DRC-clean
analysisl-bracket source ↗Fix the base, load the flange, read the stress
manufacturemotor-flange source ↗A 2.5D part ready for toolpaths
mechanicalsnap-cap source ↗A snap fit, checked as clearance
roboticsrobot-arm source ↗Two revolute joints. Pose it or simulate it
analysisribbed-plate source ↗A first DFM check for thin ribs
mechanicalsensor-mast source ↗Pocketed base, mast, sensor housings
mechanicalpulley source ↗Flanges, groove and bore from booleans
Glockenspiel in vcad.app, one bar struck with the Mallet
acousticsglockenspiel source ↗Eight bars tuned by modal FEA. Strike one with the Mallet to hear it

Your agent works in your window.

  • Bring your own agent. Claude Code, Cursor, or anything that speaks MCP connects to vcad.app on your machine. There's no hosted server.
  • Watch it work. The agent's cursor moves in your viewport, its edits land live, and long jobs like FEA show in the header pill, where you can cancel them.
  • Every claim has a receipt. Clearances, masses and pitches carry a badge that reads Holds, Stale or Violated, and it re-checks on every edit.
# one line
claude mcp add vcad -- npx -y @vcad/mcp

Open kernel

The BRep kernel is open source Rust: booleans, fillets, sweeps, STEP, drafting, FEA and physics. Read it, fork it, or embed it.

The kernel →

Free, no account

vcad has no sign-up, no license server and no cloud. Your files stay on your disk as plain .vcad JSON.

Download →

Used the web app?

The browser editor has retired. Sign in once to download all your documents as a zip, then open them in the Mac app.

Export your files →

Make something real.

Download for Mac