SoftFever / OrcaSlicer

G-code generator for 3D printers (Bambu, Prusa, Voron, VzBot, RatRig, Creality, etc.)

Home Page:

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

Build all

Orca Slicer

Orca Slicer is an open source slicer for FDM printers.

discord-mark-blue Join community: OrcaSlicer Official Discord Server

Main features

  • Auto calibrations for all printers
  • Sandwich(inner-outer-inner) mode - an improved version of the External perimeters first mode
  • Precise wall
  • Polyholes conversion support SuperSlicer Wiki: Polyholes
  • Klipper support
  • More granular controls
  • More features can be found in change notes


Stable Release

📥 Download the Latest Stable Release
Visit our GitHub Releases page for the latest stable version of Orca Slicer, recommended for most users.

Nightly Builds

🌙 Download the Latest Nightly Build
Explore the latest developments in Orca Slicer with our nightly builds. Feedback on these versions is highly appreciated.

How to install


  1. Download the installer for your preferred version from the releases page.


  1. Download the DMG for your computer: arm64 version for Apple Silicon and x86_64 for Intel CPU.

  2. Drag to Application folder.

  3. If you want to run a build from a PR, you also need following instructions below

    - Option 1 (You only need to do this once. After that the app can be opened normally.): - Step 1: Hold _cmd_ and right click the app, from the context menu choose **Open**. - Step 2: A warning window will pop up, click _Open_
    • Option 2:
      Execute this command in terminal: xattr -dr /Applications/
          softfever@mac:~$ xattr -dr /Applications/
    • Option 3:
      • Step 1: open the app, a warning window will pop up
      • Step 2: in System Settings -> Privacy & Security, click Open Anyway:


  1. If you run into trouble to execute it, try this command in terminal:
    chmod +x /path_to_appimage/OrcaSlicer_Linux.AppImage

How to compile

  • Windows 64-bit

    • Tools needed: Visual Studio 2019, Cmake, git, git-lfs, Strawberry Perl.
    • Run build_release.bat in x64 Native Tools Command Prompt for VS 2019
    • Note: Don't forget to run git lfs pull after cloning the repository to download tools on Windows
  • Mac 64-bit

    • Tools needed: Xcode, Cmake, git, gettext, libtool, automake, autoconf, texinfo
      • You can install most of them by running brew install cmake gettext libtool automake autoconf texinfo
    • run
    • To build and debug in XCode:
      • run
      • open build_`arch`/OrcaSlicer.xcodeproj
      • menu bar: Product => Scheme => OrcaSlicer
      • menu bar: Product => Scheme => Edit Scheme...
        • Run => Info tab => Build Configuration: RelWithDebInfo
        • Run => Options tab => Document Versions: uncheck Allow debugging when browsing versions
      • menu bar: Product => Run
  • Ubuntu

    • Dependencies Will be auto installed with the shell script: libmspack-dev libgstreamerd-3-dev libsecret-1-dev libwebkit2gtk-4.0-dev libosmesa6-dev libssl-dev libcurl4-openssl-dev eglexternalplatform-dev libudev-dev libdbus-1-dev extra-cmake-modules libgtk2.0-dev libglew-dev libudev-dev libdbus-1-dev cmake git texinfo
    • run 'sudo ./ -u'
    • run './ -dsir'


If you're running Klipper, it's recommended to add the following configuration to your printer.cfg file.

# Enable object exclusion

# Enable arcs support
resolution: 0.1


Orca Slicer is an open-source project, and I'm deeply grateful to all my sponsors and backers.
Their generous support enables me to purchase filaments and other essential 3D printing materials for the project.
Thank you! :)


Peopoly QIDI Phrozen Technology


Ko-fi supporters: Backers list

Support me

Some background

OrcaSlicer is originally forked from Bambu Studio, it was previously known as BambuStudio-SoftFever.

Bambu Studio is forked from PrusaSlicer by Prusa Research, which is from Slic3r by Alessandro Ranellucci and the RepRap community. Orca Slicer incorporates a lot of features from SuperSlicer by @supermerill Orca Slicer's logo is designed by community member Justin Levine(@freejstnalxndr)


Orca Slicer is licensed under the GNU Affero General Public License, version 3. Orca Slicer is based on Bambu Studio by BambuLab.

Bambu Studio is licensed under the GNU Affero General Public License, version 3. Bambu Studio is based on PrusaSlicer by PrusaResearch.

PrusaSlicer is licensed under the GNU Affero General Public License, version 3. PrusaSlicer is owned by Prusa Research. PrusaSlicer is originally based on Slic3r by Alessandro Ranellucci.

Slic3r is licensed under the GNU Affero General Public License, version 3. Slic3r was created by Alessandro Ranellucci with the help of many other contributors.

The GNU Affero General Public License, version 3 ensures that if you use any part of this software in any way (even behind a web server), your software must be released under the same license.

Orca Slicer includes a pressure advance calibration pattern test adapted from Andrew Ellis' generator, which is licensed under GNU General Public License, version 3. Ellis' generator is itself adapted from a generator developed by Sineos for Marlin, which is licensed under GNU General Public License, version 3.

The bambu networking plugin is based on non-free libraries from Bambulab. It is optional to the Orca Slicer and provides extended functionalities for Bambulab printer users.


G-code generator for 3D printers (Bambu, Prusa, Voron, VzBot, RatRig, Creality, etc.)

License:GNU Affero General Public License v3.0


Language:C++ 82.5%Language:C 9.2%Language:JavaScript 4.5%Language:HTML 1.8%Language:Perl 0.7%Language:CMake 0.5%Language:CSS 0.2%Language:GLSL 0.1%Language:Roff 0.1%Language:Objective-C++ 0.1%Language:Less 0.1%Language:SCSS 0.1%Language:QMake 0.1%Language:Makefile 0.0%Language:Shell 0.0%Language:Svelte 0.0%Language:Python 0.0%Language:Batchfile 0.0%Language:Dockerfile 0.0%Language:Objective-C 0.0%Language:G-code 0.0%Language:BitBake 0.0%