CNC Software

14 Best Free and Open Source CNC Software

CNC (also known as numerical control or computer numerical control) is the automated control of machining tools (such as milling machines, lathes, 3d printers, laser cutters, plasma cutters, robot arms, hexapods) by means of a computer.

A CNC machine processes a piece of material (metal, plastic, wood, ceramic, or composite) to meet specifications by following coded programmed instructions and without a manual operator directly controlling the machining operation.

In modern CNC systems, the design of a mechanical part and its manufacturing program are highly automated. The part’s mechanical dimensions are defined using CAD software and then translated into manufacturing directives by computer-aided manufacturing (CAM) software.

This chart provides our verdict. We only feature open source software here.

Ratings chart

Let’s explore the 14 tools. For each application we have compiled its own portal page, a full description with an in-depth analysis of its features, together with links to relevant resources.

CNC Software
Universal Gcode Sendergcode platform used for interfacing with advanced CNC controllers
LinuxCNCDrive milling machines, lathes, 3d printers, laser cutters, ...
CNCjsWeb-based interface for CNC milling controller
gSenderConnect to and control Grbl-based CNCs
OpenCamLibLibrary providing computer aided manufacturing (CAM) algorithms
bCNCCross-platform Python application for CNC machines
Kiri:MotoBrowser-based Slicer for 3D printers, CNC mills, and Laser cutters
OpenBuilds CONTROLConnect and control your CNC, Laser, Plasma or Dragknife machine
Luban3-in-1 software tailor-made for Snapmaker machines
InkcutControl 2D plotters, cutters, engravers and CNC machines
RayforgeLaser cutters and engravers tool
MeerK40tLaser cutting software
CAMotics3-axis CNC GCode simulator
MachinekitPlatform for machine control applications

This article has been updated to reflect the changes outlined in our recent announcement.

Best Free and Open Source Software Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.

This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more.

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6 Comments
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Anahit
Anahit
2 years ago

As a hobbyist, I highly recommend [Redacted] to anyone looking for a CAD software that’s easy to use, yet powerful enough to create complex 3D designs.

Tarek Hasan
Tarek Hasan
3 months ago

Hi,
Please add Kiri:Moto, CNCjs, Snapmaker Luban and OpenBuilds CONTROL to the list.