Free vs Premium
3dSynth is free forever for creative exploration: every effect, transform, SynthBlock, node, and predefined model is available to everyone. Premium unlocks the workflow features you need to finish, save, and share real projects — and the offline desktop app.
At a glance
| Feature | Free | Premium |
|---|---|---|
| All effects, transforms, SynthBlocks, nodes, predefined models | ✓ | ✓ |
| Live 3D viewer, orbit / pan / shade modes | ✓ | ✓ |
| Community Library — browse & download | ✓ | ✓ |
| Documentation & tutorials | ✓ | ✓ |
| Profile / G-code Sculptor | Up to 2 effects stacked with export | Unlimited effect stacking |
| Profile — export G-code / STL / OBJ / glTF | With ≤ 2 effects | Always |
| Profile — save presets or project files | With ≤ 2 effects | Always |
| SynthBlocks — export G-code, STL, OBJ, glTF | ✗ | ✓ |
| SynthBlocks — save / load workspace | ✗ | ✓ |
| Julia Fractal mode | ✗ | ✓ |
| G-code Inspector (line-by-line) | ✗ | ✓ |
Save / load .3dsynth project files | ✗ | ✓ |
| Share designs to the Community Library | ✗ | ✓ |
| Desktop app — works offline | ✗ | ✓ |
Premium features in detail
Unlimited Effect Stacking
Free limit- Up to 2 effects in the Profile stack. You can still try more effects live in the viewer, but export and save are blocked until you remove extras or go Premium.
Premium- Stack as many effects as you like, reorder them freely, and export/save at any depth.
SynthBlocks Export & Save
Export G-code / meshes- Turn a SynthBlocks program into printable G-code, STL, OBJ, or glTF. Free users can author and preview SynthBlocks programs, but export is Premium-only.
Save & load workspace- Keep a library of SynthBlocks programs — save your graph, come back later, edit, and re-export.
Julia Fractal Mode
Julia Stack- Generate boundary patterns driven by Julia-set mathematics. A Premium-only mode in the Profile editor for fractal-based silhouettes. See Julia Stack.
G-code Inspector
Line-by-line inspection- Open a dockable G-code inspector alongside the viewer — search, jump to a line, read coordinates, extrusion, and temperatures. See G-code Inspector.
Projects & Presets
Save design presets- Save, browse, and restore your own design presets with thumbnails directly from the preset picker.
.3dsynth project files- Save your entire project — profile, effects, transforms, printer settings — to a single
.3dsynthfile. Open it later or share it with collaborators. Share to community library- Publish G-code Sculptor, SynthBlocks, Mesh Sculptor, or Node Sculptor projects to the Community Library so other users can remix them. See Community Library.
Desktop Application
Offline workflow- Install 3dSynth on Windows, macOS, or Linux for a fully offline experience — native file dialogs, local storage, and no dependency on a browser tab. See Desktop App.
Automatic updates- The desktop app checks for new versions on startup (see Version History for the changelog).
How gating works
When you try a Premium-only action as a free user — for example, exporting a 7-effect stack or saving a SynthBlocks workspace — a Premium modal appears with a clear explanation of what you tried to do and what Premium unlocks. You can either purchase a license or dismiss the modal and keep exploring.
Related
- Purchase (Gumroad) — one-time pricing and supported platforms.
- Activating your license — how to enter and verify your key.
- Desktop app — install the offline version.
- Privacy & analytics — what we track and how to opt out.