OrcaSlicer vs PrusaSlicer in 2026
Compare OrcaSlicer, PrusaSlicer, and LunarWerx 3D Print by features, pricing, setup, and maker needs.
TexHouse is published by the makers of LunarWerx 3D Print, Vector3D and MeshyDL, which are compared here alongside other tools.
OrcaSlicer and PrusaSlicer are the slicer alternatives here, meaning programs that turn a 3D model into instructions for your printer. [1] [2] PrusaSlicer is free, and its page says no account is required. [2] It provides 200+ tested profiles for every Prusa printer and every filament. [2] LunarWerx 3D Print runs in a web browser, and its tools are free to use. [3] [3]
| Option | Price | Platforms |
|---|---|---|
| OrcaSlicer | Free [1] | Windows, macOS, and Linux [1] |
| PrusaSlicer | Free. No account required. [2] | Windows, Mac, and Linux [2] |
| LunarWerx 3D Print | Free to use [3] | Web browser [3] |
The short answer
A slicer helps turn a 3D model into instructions for a 3D printer. OrcaSlicer is a free tool for FDM 3D printers. [1] PrusaSlicer is free and does not require an account. [2]
OrcaSlicer says it provides adaptive bed mesh calibration and per-feature overrides for speed, layer height, pressure, and temperature. [1][1] PrusaSlicer says it provides tested profiles. [2]
LunarWerx 3D Print is a browser based tool that works out ironing settings and exports a ready 3MF file. [3][3]
What OrcaSlicer and PrusaSlicer are built for
OrcaSlicer describes itself as a free slicer for FDM 3D printers. [1] It supports Windows, macOS, and Linux. [1]
OrcaSlicer provides wall and seam control, smart supports, and per-feature overrides for speed, layer height, pressure, and temperature. [1] [1] [1]
OrcaSlicer's page also describes adaptive bed mesh calibration, which probes only the region your print occupies. [1] It lists automatic mouse-ear brims that hold corners down on warp-prone prints. [1] It says you can set speed, layer height, pressure, and temperature independently for walls, infill, supports, and more. [1]
PrusaSlicer describes itself as a feature rich tool that is frequently updated. [2] It runs on Windows, macOS, and Linux. [2]
PrusaSlicer provides 200+ tested profiles for every Prusa printer and every filament. [2] It also lists automatic profile updates through the built in updater. [2]
What LunarWerx 3D Print is built for
LunarWerx 3D Print is made by the team that publishes this site. It runs in a web browser. [3]
LunarWerx 3D Print works out ironing settings for your printer, material, and finish and exports a ready 3MF file. [3] It makes a 9 pad or 16 pad test plate around your settings, and you mark each pad as worked or not. [3]
You can click flat top surfaces, and the export adds a modifier part over each picked surface. [3] For an uploaded Bambu or Orca project, it adds per-object ironing settings and keeps the rest of the file unchanged. [3]
It can also turn backwards facing faces of an STL outward and tell you how many it fixed. [3]
One checkbox slows just the first layer to 15 mm/s by default; LunarWerx 3D Print says it then sticks to a clean plate without glue. [3] For shipping parts, it lays them out in a box and designs a 3D printable foam tray and top pad. [3] The foam insert is split into pieces that each fit your printer's bed. [3]
Pricing and fees
OrcaSlicer is described as free. [1] PrusaSlicer is described as free and no account is required. [2] LunarWerx 3D Print tools are free to use. [3]
The facts gathered here state no card fee for any of the three tools. A maker should check each tool's own page for current terms, and confirm whether any add-on or service they want carries its own cost.
Setting it up and printing
OrcaSlicer supports Windows, macOS, and Linux. [1] OrcaSlicer supports Windows, macOS, and Linux. [1]
PrusaSlicer runs on Windows, Mac, and Linux. [2] PrusaSlicer says it supports direct file transfer over a local network. [2] It also says it supports direct file transfer over a local network. [2]
PrusaSlicer's page lists version 2.9.6 for Windows, released June 25, 2026. [2] It also offers an experimental preview, PrusaSlicer 3.0.0-alpha12. [2]
You use it on its website, which is hosted on Cloudflare. [3] It runs only in your browser; sign in with Connections and your settings, recent test plates and print results follow you to every computer. [3]
Things to check before you choose
Ask these questions before choosing a tool:
- Does it support the printer, material, and workflow being used?
- Does it provide the calibration or preparation tools needed?
- Does it need an account or work without one?
- Which operating system does it support?
- How does it move print files to the printer?
- Does it work with existing project files?
- Are the settings and exports suitable for the way the printer is used?
- Does the tool keep working when the internet is down, and does that matter for your workshop?
How to choose
For adaptive bed mesh calibration, OrcaSlicer's page describes that feature. [1]
For tested profiles, PrusaSlicer's page describes that feature. [2]
For direct file transfer over a local network, PrusaSlicer's page describes that. [2]
For built-in calibration tools, OrcaSlicer's page describes that. [1]
For ironing settings, ironing test plates, and browser based model helpers, LunarWerx 3D Print describes those tools. [3][3][3]
Frequently asked questions
Is OrcaSlicer free?
OrcaSlicer's page describes it as a free slicer for FDM 3D printers. [1] It also says OrcaSlicer supports Windows, macOS, and Linux. [1] Its page does not list paid plans, so check the current page if pricing terms are important.
Is PrusaSlicer free and does it need an account?
PrusaSlicer's page says it is free and no account is required. [2] It also says PrusaSlicer runs on Windows, Mac, and Linux. [2] A maker can compare those details with the printer and workflow requirements before choosing a tool.
Which tool has calibration features for 3D printing?
OrcaSlicer's page says it provides adaptive bed mesh calibration, which probes only the region the print occupies. [1] Check the tools and tests needed for a specific printer before choosing.
Can these tools work with printer connections?
PrusaSlicer says it supports direct file transfer over a local network. [2] Check the printer connection method needed before setup.
What does LunarWerx 3D Print do for ironing?
LunarWerx 3D Print works out ironing settings for a printer, material, and finish and exports a ready 3MF file. [3] It also makes a 9 pad or 16 pad test plate around settings and lets a maker mark each pad as worked or not. [3] The tools are free to use. [3]
The tools are free to use. [3]
Try LunarWerx 3D PrintSources
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