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Orca Slicer

Orca Slicer is an open source slicer for FDM (fused deposition modeling) 3D printers that converts 3D models into machine instructions.

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Orca Slicer is an open source slicer for FDM (fused deposition modeling) 3D printers that converts 3D models into machine instructions. It manages print profiles and multi-plate jobs, and can run as a web-based container for server-side slicing. It is useful for makers and homelab users who want a customizable, actively maintained slicer.

Platform availability

Available on 2 of 6 install platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS
  • Proxmox (not listed)
  • Helm (not listed)

Also on Docker Hub and GitHub

Health score

66/100 Good

Maintained
100last commit 14 days ago
Popular
45183 GitHub stars
Easy to install
452 install platforms, install notes, Docker image
Light to run
404 GB minimum RAM, runs on ARM
How is this calculated?

A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). Factors without data are left out and the rest are rescaled.

Availability: platform listings confirmed today

GitHub stars
183
Open issues
0
Last commit
2026-09-24
Latest release
v2.4.2-ls41
License
GPL-3.0
Activity
rising

Checked 9 days ago - source: GitHub (linuxserver/docker-orcaslicer)

Resources & Compatibility

Minimum requirements: 4 GB RAM. ARM (e.g. Raspberry Pi) is supported.

Checked 9 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Fill in the required settings first In the settings file that starts the app, set PUID and PGID (the user and group IDs the container runs as), TZ (your timezone), and a real folder for /config, then make ports 3000 and 3001 available on your machine. If these are missing or wrong, OrcaSlicer may fail to start, lose settings, or become unreachable from your browser. source
  • Launch it and open the web page Open a terminal and run docker-compose up -d to start the container in the background, then open https://localhost:3001/ to use OrcaSlicer. This is the main entry point; without starting the container, there is no web interface to load. source
  • Optional: add Nvidia GPU support If you have an Nvidia graphics card, install the official Nvidia driver and configure Docker to use the Nvidia runtime. Without this, GPU-accelerated performance may not work, and the app may run slower or fall back to CPU only. source

Fetched today - each note links to its source

Alternatives (6)

  • Bambu Studio - Bambu Studio is Bambu Lab's official, open-source slicing software that converts 3D models into print-ready G-code.
  • Creality Print - Creality Print is a self-developed Fused deposition modeling slicing software produced by Creality.
  • Cura - UltiMaker Cura(https://ultimaker.com/software/ultimaker-cura/) is free, easy-to-use 3D printing software trusted by millions of users.
  • Lychee Slicer - Lychee Slicer is an elegant and powerful Slicer software for SLA/Resin 3D printer, answering the needs of figurine artists, jewel designers…
  • MatterControl - MatterControl is a free, open source app that lets you organize and manage your 3D prints.
  • QIDI Studio - QIDIStudio is a professional 3D printer slicing software,which is perfectly compatible with all printers and 3D printing filaments of QIDI…

Checked 10 days ago - source: AlternativeTo

Common questions

What LinuxServer.io container options are advertised for Orca Slicer?

The container is described as providing regular application updates, easy user mappings via PGID and PUID, an s6 overlay base image, weekly base OS updates, and regular security updates.

Can OrcaSlicer control part fan speed based on overhang angle?

A community suggestion highlights that OrcaSlicer can control part fan speed as a function of overhang angle.

Did OrcaSlicer keep all advanced PrusaSlicer settings?

A community discussion says OrcaSlicer came from PrusaSlicer and that advanced features or settings were removed in the simpler Bambu Lab-oriented slicer.

Answers sourced from github.com, www.reddit.com, www.reddit.com

Community

Collected 8 days ago - public community threads