Open Source Simplify3D Alternatives
The best open source alternative to Simplify3D is Cura. If that doesn't suit you, our users have ranked more than 10 alternatives to Simplify3D and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Simplify3D are PrusaSlicer, MatterControl, Slic3r and SuperSlicer.
Simplify3D alternatives are mainly 3D Printing Tools but may also be CAD Software or 3D Modelers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Simplify3D.Cura aims to be a end solution for personal 3D printing with RepRap based machines. It is tuned toward the Ultimaker, but can be used on any RepRap based design.
Cura vs Simplify3D opinions
very good and sometimes is better than simplify
Free, many settings, many supported printers
PrusaSlicer (formerly known as Slic3r Prusa Edition or Slic3r PE) is our own in-house developed slicer software based on the open-source project Slic3r. It's open-source and you can get it in our Drivers & Apps Package.
MatterControl is a free, open source app that lets you organize and manage your 3D prints. It's designed to help you get the most out of your 3D printer - making it easy to track, preview, and print your 3D parts.
STL-to-GCODE translator for RepRap printers.
Slic3r vs Simplify3D opinions
MatesaktesakIt does everything you need, handles intersecting shalls, has many settings
SuperSlicer takes 3D models (STL, OBJ, AMF) and converts them into G-code instructions for FFF printers or PNG layers for mSLA 3D printers. It's compatible with any modern printer based on the RepRap toolchain which is running a firmware based on Marlin, Prusa, Klipper, etc.
Printrun is a full suite of host interfaces for 3D printers and CNC, consisting of:
This is the software that will drive your MakerBot Replicator, Thing-O-Matic, CupCake CNC, RepRap machine, or generic CNC machine. You can give it a GCode or STL file to process, and it takes it from there.
SuperSkein is a first-order model slicer that runs in Processing. It's pretty basic still, but since it's object oriented and in Processing (which could be quickly ported to C) it should be easy for the community to hack and improve.
Discontinued
No recent development activity: https://github.com/MaskedRetriever/SuperSkein
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