Download
Windows, Linux and macOS
No extra libraries are needed: OpenCASCADE and the dependencies are inside the package.
This is a development build, not a finished CAD
The program works and is fit for real parts, but it is updated daily. The document format changes with no backward compatibility — a file from an earlier version may not open. The CNC (CAM) module does not work.
Version v0.1.0-dev.20260828 of 28 August 2026 · what changed
Windows 10/11 x64
Unpack the archive anywhere and run qymcad.exe. No extra libraries are needed.
Linux
A single AppImage file. Requires glibc 2.35 or newer: Ubuntu 22.04+, Debian 12+, Fedora 36+, Arch.
macOS
An archive with the app. Apple Silicon only — M1 and newer; there is no build for Intel Macs.
Features
What it does
Sketching
Lines, arcs, circles, ellipses, splines, polygons, slots, text. Constraints and dimensions are solved together; dimensions are parametric (w/2, sin(a)). There is construction geometry and the projection of a body's edges into the sketch.
Parts
Extrude, revolve, sweep, loft, variable-radius fillet, chamfer, shell, draft, holes with counterbore and countersink, patterns, mirror, booleans. Threads are built from a real helical profile with run-outs.
Assemblies
Eight kinds of joints, limits and drives, degrees of freedom, an interference check. A sketch can sit on the face of a neighbouring part as an associative reference: change the neighbour and the dependent part rebuilds.
Exchange
STEP and STL on import and export, DXF and SVG for sketches. Either the whole project or a single part or sub-assembly picked in the tree can be written out.
Under the hood
How it is built
OpenCASCADE kernel
Exact solid B-rep geometry on the same kernel FreeCAD runs on. Real surfaces instead of meshes and correct fillets.
Parametric model
Change a dimension in any operation and everything below it in the timeline rebuilds, the assembly included.
One project file
Parts, assemblies and sketches live in one document. No cloud, no subscription, no account.
Two interface languages
English and Russian — in the program and in the help alike.
Windows, Linux and macOS
Windows 10/11 x64, an AppImage for Linux with glibc 2.35+ (Ubuntu 22.04+, Debian 12+, Fedora 36+, Arch), and a macOS build for Apple Silicon. Everything needed is inside the package.
Help inside the program
The same articles as on this site are baked into the program and open on F1 — offline.
Honestly about the state