Download OrcaForge
Linux AppImage, macOS universal DMG, or Windows NSIS installer — all signed, all shipped. Existing OrcaSlicer profiles auto-migrate on first launch.
The OrcaSlicer fork
with a plugin marketplace built in.
OrcaForge tracks upstream OrcaSlicer for bug fixes and slicing improvements, and adds a permissioned plugin host plus an in-app Marketplace tab for browsing and installing community plugins. Free, open source, AGPL-3.0.
Free foreverAuto-migrates OrcaSlicer profilesAnonymous installs
How it works
OrcaForge is the OrcaSlicer build you actually run; the marketplace is the layer that makes it extensible. Both ship from the same source tree.
Open the Marketplace tab
The slicer ships with a built-in Marketplace browser that fetches its catalog from this site. No account required to install — browsing and installs are anonymous.
Stay in sync with upstream
OrcaForge pulls bug fixes and slicing improvements from upstream OrcaSlicer weekly. The marketplace stays independent so plugin authors only build against the OrcaForge engine boundary.
Download OrcaForge
Linux AppImage, macOS universal DMG, and Windows NSIS installer all ship from the same source tree. Hosted on ZRegistry, served through the OrcaForge worker.
AppImage (x86_64)
No installer needed — chmod +x and run.
DMG (Universal)
Apple Silicon + Intel · signed + notarized.
NSIS Installer
Windows 10 / 11 · x86_64.
First launch auto-migrates your existing OrcaSlicer profiles — ~/.config/OrcaSlicer/ → ~/.config/OrcaForge/ (and equivalents on macOS/Windows). The original directory is left untouched.
API surface
Everything the OrcaSlicer client and publisher CLI consume — anonymous reads, JWT-gated writes.
- GET
/v1/catalog.jsonFull plugin catalog (60s edge cache).
- GET
/v1/plugins/{id}Per-plugin detail (manifest + versions).
- GET
/v1/plugins/{id}/versions/{v}/download302 redirect to the signed ZRegistry blob.
- PUT
/v1/plugins/{id}/metadataPublisher metadata write — used by orca-plugin-publish.
auth: ZAuth JWT - GET
/v1/healthLiveness probe.