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SPECIFICTION
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OrcaSlicer

orcaslicer.com

Free plan WindowsmacOSLinux
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Spec score 7.7 #17 of 27 in 3D Slicer Software

What it is

OrcaSlicer is a free, open-source slicer for FDM 3D printers on Windows, macOS, and Linux. It controls speed, layer height, pressure, and temperature independently for walls, infill, supports, and other features. Calibration tools cover flow rate, pressure advance, temperature towers, retraction, tolerance, and maximum volumetric speed. Tuned presets are provided for hundreds of printers, including Bambu Lab, Prusa, Creality, and Voron. Jobs can be sent to and monitored on Klipper, PrusaLink, or OctoPrint printers. The slicer supports automatic supports, model repair, multi-material printing, and variable layer height, but not resin or cloud slicing. Input formats include STL, 3MF, STEP, DRC, OBJ, AMF, SVG, and ZIP; outputs include G-code, Gcode.3MF, OBJ, STL, DRC, and generic 3MF. The desktop app works offline without accounts or telemetry, keeping project data on the device. It is licensed under AGPL-3.0.

Spec sheet

Product
OrcaSlicer is a free, open-source slicer for FDM 3D printers.Read 29 Sep 2026 · orcaslicer.com
Integrations
The privacy policy lists optional print-host integrations including OctoPrint, Klipper/Moonraker, PrusaLink, and Duet, plus cloud services such as SimplyPrint, Obico, and Prusa Connect.Read 29 Sep 2026 · orcaslicer.com
Security
The privacy policy says update and profile downloads use HTTPS and print-host credentials are stored locally.Read 29 Sep 2026 · orcaslicer.com
Privacy
The desktop app works offline, requires no account, and collects no telemetry; models, project files, G-code, and printer settings stay on the user's device.Read 29 Sep 2026 · orcaslicer.com
Support
The project directs bug reports and feature requests to GitHub and offers community help through Discord.Read 29 Sep 2026 · orcaslicer.com
License
OrcaSlicer is licensed under AGPL-3.0 and is developed in the open by SoftFever and community contributors.Read 29 Sep 2026 · orcaslicer.com
Calibration
Its built-in calibration suite covers flow rate, pressure advance, temperature towers, retraction, tolerance, and maximum volumetric speed.Read 29 Sep 2026 · orcaslicer.com
Downloads
Official stable builds are offered for Windows, macOS, and Linux through GitHub Releases, the Microsoft Store, and Flathub; nightly builds may be unstable.Read 29 Sep 2026 · orcaslicer.com
Maker and headquarters
The about page names SoftFever as creator and maintainer; the privacy policy identifies OrcaSlicer Pte. Ltd. in Singapore as the legal entity responsible for privacy requests.Read 29 Sep 2026 · orcaslicer.com
Optional connections
The app connects for update checks, profile updates, and printer or cloud integrations that users choose to enable.Read 29 Sep 2026 · orcaslicer.com
Print controls
Users can set speed, layer height, pressure, and temperature independently for walls, infill, supports, and other features.Read 29 Sep 2026 · orcaslicer.com
Printer profiles
The site describes tuned presets for hundreds of printers, including Bambu Lab, Prusa, Creality, and Voron.Read 29 Sep 2026 · orcaslicer.com
System requirements
The download page specifies Windows 10 or later, macOS 10.15 or later, and Ubuntu 20.04 or equivalent for Linux, with 4GB RAM minimum and 500MB free disk space.Read 29 Sep 2026 · orcaslicer.com
Third-party plugin
The Bambu Network Plugin is an optional third-party download and is not installed silently.Read 29 Sep 2026 · orcaslicer.com
Workflow
The slicer can send jobs to and monitor printers running Klipper, PrusaLink, or OctoPrint.Read 29 Sep 2026 · orcaslicer.com

Plans and prices

OrcaSlicer Free Free, open-source FDM 3D printer slicer · Windows, macOS, Linux Read 29 Sep 2026 · orcaslicer.com

Every OrcaSlicer plan and price →

Strong points and limits

Strong points

  • Windows, macOS, and Linux builds
  • Calibration suite covers key print variables
  • Printer sending and monitoring supported
  • Offline use without account or telemetry
  • Multi-material and variable-layer tools

Limits

  • No resin slicing
  • No cloud slicing
  • Nightly builds may be unstable

Who it suits

It suits FDM printing users who want detailed calibration, printer monitoring, broad model-format support, and offline desktop operation.

Verdict

OrcaSlicer provides extensive FDM controls, calibration, printer connectivity, and local data handling at no cost.

Where Specifiction places it

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