Originally shared by Marvin Stuart
Web based gcode sender for grbl
PLEASE LETS SUPPORT - Andrew
http://andrewhodel.github.io/grblweb/
Kinda wish it wasn’t so focused on GRBL. While a great piece of software, very few people use it directly. A lot of the time it’s used as the basis for a domain specific gcode firmware. For our purposes, something like OctoPrint is not only more mature, but also more focused on what we use it for.
@ThantiK it’d be real easy to adapt to Marlin, add a 3d gcode visualizer and temperature plot then call it MRLNweb 
I’ll probably do that before too long as the capability for any number of serial ports (as many printers as you want) is already done here, but for now I’m on the CNC more than the 3dp!
Or it could auto detect the controller type, i.e. this serial port is GRBL and this one is Marlin and be “named” controller agnostic.