A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allows to export graphs as JSONs to be included in applications independently.
Actually I haven't tried yet, but a graph should be runnable from the browser or from the shell with Node.js
Just load the graph and run it, the editor, visuals and canvas should be optionals.
Is there a way to convert the graph into a runnable
javascript
orpython
code similar to what blockly does?