Two free programs for 3D design and 3D printing. Pick the one that fits the way you work.
Easy 3D modeling for 3D printing. Works on your computer, even without internet. No account, no subscription, and what you build stays with you.

Click the picture that matches your computer. The file downloads, then you open it and follow the installer.
Not sure which Mac you have? Click the Apple menu → About This Mac. If it says "Chip: Apple M…" pick Apple Silicon, if it says "Processor: Intel" pick Intel. Installing for the first time? See the quick help below.
As easy as Tinkercad, with a few big steps towards Fusion 360. Made for people who print what they design.
No account, no cloud. Your designs are saved automatically on your computer.
Chamfer and fillet edges, hollow out bodies, sketches with exact measurements, threads, patterns.
STEP, STL, 3MF, OBJ and SVG in and out. Use it before Bambu Studio, Orca Slicer or Fusion.
Profiles for about 220 printers, overhang warning and a filament estimate.
Connect Claude through MCP and let it build or change the model together with you.
Slovenian, English, German, French, Dutch, Polish, Czech, Hungarian and Russian.
A new version appears every time the original Layerling is updated. This list is the latest changes.
Layerling is an open-source 3D modeling program by Stefan (henmedia), licensed under AGPL-3.0. It runs in the browser.
Cassette Deck Service builds the desktop version around it: a program you install, with automatic saving, a shared folder, a connection for AI helpers, custom fonts and Slovenian first in the language list.
Parametric 3D CAD for real parts. Sketch with exact dimensions, build solids on an editable timeline, and change one number to see the whole model rebuild. It can use two screens: the model on one, the tools on the other.
Click the picture that matches your computer. The file downloads, then you open it and follow the installer.
Other formats (Windows MSI and portable ZIP, Linux DEB and RPM) and all versions are on GitHub. The program is not signed yet: on Windows choose More info, then Run anyway. On a Mac, see the quick help below. On Linux, right-click the file, open Properties and allow executing it as a program.
A serious parametric modeler for people who make parts that have to fit. Free and open source.
The model on one screen, the tools on the other. Turn it on in the settings under Interface.
Sketches with exact dimensions and constraints, and an editable timeline. Change a number and the model rebuilds.
Extrude, revolve, sweep, loft, fillet, chamfer, shell, holes, threads and patterns.
STEP, IGES, 3MF, STL, OBJ and glTF, where supported. Use it before Bambu Studio or Orca Slicer.
The whole interface also speaks Slovenian, next to many other languages.
A built-in MCP connection lets an AI helper such as Claude model together with you.
SolidCraft is an open-source parametric CAD program written in Rust by the SolidCraft contributors. It is licensed under MIT or Apache-2.0, at your option.
Cassette Deck Service adapts it as SolidCraft by CDS: a separate window for the tools so the model gets a whole screen, a Slovenian interface, and our own name and logo.
Our own 3D models, ready for printing, are on MakerWorld.
This message appears for programs from small publishers. Click More info, then Run anyway.
Yes. Both the original and the desktop version are free and open source.
On your computer, automatically. Nothing is uploaded anywhere.
Yes. The app tells you when a new version is available, and this page always offers the latest one.