Draw Flow allows you to create data flows quickly and easily, connecting the flows and outputting JSON to collect the inputs on those flows
-> Customise the headers, icons, inputs, and colours of blocks using JSON
-> Easy Drop Drag Canvas
-> Output Data to JSON for use in workflows etc

Utilising JSON you can customise your own blocks for selection, with an easy drop and drag and connection of blocks on the Canvas

https://bubble.io/page?id=flowy-13592&tab=tabs-1&name=index