Christian Gudrian#OpenRobertaLab is an open source graphical code editor for various robot platforms (including #LEGO #MindstormsNXT).
While the backend is written in #Java the #Blockly based frontend runs in the browser.
You can build and run it yourself.
GitHub - OpenRoberta/openroberta-lab: The programming environment »Open Roberta Lab« by Fraunhofer IAIS enables children and adolescents to program robots. A variety of different programming blocks are provided to program motors and sensors of the robot. Open Roberta Lab uses an approach of graphical programming so that beginners can seamlessly start coding. As a cloud-based application, the platform can be used without prior installation of specific software but runs in any popular browser, independent of operating system and device.
The programming environment »Open Roberta Lab« by Fraunhofer IAIS enables children and adolescents to program robots. A variety of different programming blocks are provided to program motors and se...
Or you can use the official #Docker image.