README.md
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OrcaSlicer: an open source Next-Gen Slicing Software for Precision 3D Prints.
Optimize your prints with ultra-fast slicing, intelligent support generation, and seamless printer compatibility—engineered for perfection.
<a href="https://www.orcaslicer.com/" style="font-size:2em;">OrcaSlicer.com</a>
<a href="https://github.com/OrcaSlicer/OrcaSlicer"> </a>
<a href="https://twitter.com/real_OrcaSlicer"> </a>
<a href="https://discord.gg/P4VE9UY9gJ"> </a>
<table border="2" style="border-color: #ffa500; background-color:rgb(232, 220, 180); color: #856404;"> <tr> <td> <strong>⚠️ CAUTION:</strong>Several clickbait and malicious websites, such as <b>orca-slicer[.]com</b> and <b>orcaslicer[.]net</b>, are pretending to be the official OrcaSlicer site. These sites may redirect you to dangerous downloads or contain misleading information.
<b>Our only official website is <a href="https://www.orcaslicer.com/">www.orcaslicer.com</a>.</b>
If you come across any of these in search results, please <b>report them</b> as unsafe or phishing to help keep the community secure with:
<a href="https://safebrowsing.google.com/safebrowsing/report_phish/">Google Safe Browsing</a>
<a href="https://www.microsoft.com/en-us/wdsi/support/report-unsafe-site">Microsoft Security Intelligence</a>
<a href="https://ipthreat.net/tools/reportphishing">IPThreat</a>
The wiki aims to provide a detailed explanation of the slicer settings, including how to maximize their use and how to calibrate and set up your printer.
📥 Download the Latest Stable Release
Visit our GitHub Releases page for the latest stable version of OrcaSlicer, recommended for most users.
🌙 Download the Latest Nightly Build
Explore the latest developments in OrcaSlicer with our nightly builds. Feedback on these versions is highly appreciated.
Download the Windows Installer exe for your preferred version from the releases page.
For convenience there is also a portable build available.
<details> <summary>Troubleshooting</summary>%VCINSTALLDIR%Redist\MSVC\v142Windows Package Manager
winget install --id=SoftFever.OrcaSlicer -e
Download the DMG for your computer: arm64 version for Apple Silicon and x86_64 for Intel CPU.
Drag OrcaSlicer.app to Application folder.
If you want to run a build from a PR, you also need to follow the instructions below:
<details> <summary>Quarantine</summary>Option 1 (You only need to do this once. After that the app can be opened normally.):
Option 2: Execute this command in terminal:
xattr -dr com.apple.quarantine /Applications/OrcaSlicer.app
Option 3:
System Settings -> Privacy & Security, click Open Anyway:chmod +x /path_to_appimage/OrcaSlicer_Linux.AppImageAll updated build instructions for Windows, macOS, and Linux are now available on the official OrcaSlicer Wiki - How to build page.
Please refer to the wiki to ensure you're following the latest and most accurate steps for your platform.
If you're running Klipper, it's recommended to add the following configuration to your printer.cfg file.
# Enable object exclusion
[exclude_object]
# Enable arcs support
[gcode_arcs]
resolution: 0.1
OrcaSlicer 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! :)
Ko-fi supporters ☕: Backers list
<a href="https://github.com/sponsors/SoftFever"></a> <a href="https://ko-fi.com/G2G5IP3CP"></a> <a href="https://paypal.me/softfever3d"></a>
Open-source slicing has always been built on a tradition of collaboration and attribution. Slic3r, created by Alessandro Ranellucci and the RepRap community, laid the foundation. PrusaSlicer by Prusa Research built on Slic3r and acknowledged that heritage. Bambu Studio in turn forked from PrusaSlicer, and SuperSlicer by @supermerill extended PrusaSlicer with community-driven enhancements. Each project carried the work of its predecessors forward, crediting those who came before.
OrcaSlicer began in that same spirit, drawing from BambuStudio, PrusaSlicer, and ideas inspired by CuraSlicer and SuperSlicer. But it has since grown far beyond its origins. Through relentless innovation — introducing advanced calibration tools, precise wall and seam control, tree supports, adaptive slicing, and hundreds of other features — OrcaSlicer has become the most widely used and actively developed open-source slicer in the 3D printing community. Many of its innovations have been adopted by other slicers, making it a driving force for the entire industry.
The OrcaSlicer logo was designed by community member Justin Levine (@freejstnalxndr).