Open Source Laser Cutter / Engraver software. Supports gcode, svg, dxf, stl, png, jpg, bmp
JavaScript HTML CSS


Check the LaserWeb/CNCWeb Google+ community ( for updates on the progress of the newest iteration of LaserWeb.

Donations to the developers to further things along are always welcome, but even if you can not contribute financially, if you use LaserWeb and like it, spread the word around. More users translates into more contributors which then allows for faster, feature rich development.


We have a pretty detailed Wiki on - with details of Installing LaserWeb, Common application Workflows, Firmware setup tricks, and help for setting up LaserWeb's settings

Contact Us if you need help! We can't fix bugs if we don't hear about them (;

Link to Support Community:

Link to Youtube Playlist with LaserWeb videos:

Link to authors other projects:


By using this software, the user accepts complete responsibility for each and every aspect of safety associated with the use of the Laser machine, Laser system and LaserWeb Software.

You agree that:

  1. You will not hold the author or contributors of LaserWeb3 liable for any damage to equipment or persons from the use of LaserWeb.
  2. You know the potential hazards in using high power lasers and high voltages.
  3. You will wear professional laser-eye-protection when using a laser controlled by LaserWeb.
  4. You will use the LaserWeb software in a legal and safe manner.
  5. You relieve the author and contributors from any liability arising from the use or distribution of the LaserWeb software.
  6. You are entirely operating at your own risk. Lasers can be lethally dangerous.


Supported firmwares

Note: Ever changing. See the Issues tab above for details.

Firmware Supported by LW Raster Grayscale Realtime Feedback Pull Requests Accepted
Smoothieware Fully Yes Yes Yes - improvements
Grbl (>1.1d) Fully Yes Yes Yes - improvements
TinyG Planned Yes ** Yes Yes - please
Marlin Not yet Yes ** No Yes - please
Repetier Not planned No No Yes - please


If you want to contribute, the below are long standing community-requested enhancements, that a) we don't have time to code or b) don't know how to