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OrcaSlicer

Free, open-source slicer for FDM 3D printers with built-in calibration tools.

Open source3D printing slicers
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About OrcaSlicer

OrcaSlicer is a community-run, open-source slicer for FDM 3D printers, started by developer SoftFever as a fork of Bambu Studio and now one of the most popular slicers among hobbyists. It ships tuned profiles for hundreds of printers from Bambu Lab, Prusa, Voron, Creality and others, and is known for its built-in calibration tests for flow, pressure advance, temperature and retraction. It gives fine control over individual print moves and can send jobs to printers running Klipper, PrusaLink or OctoPrint, as well as Bambu machines. It's free, licensed under AGPL-3.0, needs no account and, by the project's account, collects no telemetry. Builds are available for Windows, macOS and Linux (AppImage and Flatpak). The large number of settings can be a lot for beginners, and new Bambu printer features sometimes arrive later than in Bambu Studio.

Best for: Hobbyists with mixed or non-Bambu printers who want calibration tools and deep control.

Pros and cons

What works

  • Built-in calibration tests for flow, pressure advance and more
  • Profiles for hundreds of printers across brands
  • Works with Klipper, PrusaLink and OctoPrint
  • No account or telemetry

Why people leave

  • Settings depth can overwhelm beginners
  • Support for new Bambu features can lag the official slicer
  • Community-run, so no vendor support

Top OrcaSlicer alternatives

See all 3
  1. 1Bambu Studio logo
    Bambu Studio

    The official Bambu slicer, best if you only own Bambu printers and want new features first.

    66.5
  2. 2PrusaSlicer logo
    PrusaSlicer

    Backed by Prusa's team, with a simpler mode for beginners and solid organic supports.

    62.6
  3. 3UltiMaker Cura logo
    UltiMaker Cura

    Large plugin marketplace and material profiles, with a gentler default view.

    59.6

Why people left OrcaSlicer

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OrcaSlicer: common questions

Is OrcaSlicer free?

Yes. OrcaSlicer is free, open-source software.

Is OrcaSlicer open source?

Yes. The source code is on GitHub at SoftFever/OrcaSlicer.

What platforms does OrcaSlicer run on?

OrcaSlicer is available for Windows, macOS and Linux.

What are the best alternatives to OrcaSlicer?

The highest-ranked OrcaSlicer alternatives right now are Bambu Studio, PrusaSlicer and UltiMaker Cura. See the full ranked list for pricing, platforms and verified facts.

See all 3 OrcaSlicer alternatives