Flyde
Visual programming for developers. Includes a VS Code extension
...Flyde’s flow-based, visual approach makes asynchronous and concurrent tasks simpler and more intuitive. In Flyde, nothing is hidden. From node implementation to runtime code. Easily access the code behind each node in Flyde’s standard library. Everything needed to run Flyde flows is open source and MIT-licensed. Create Flyde flows right from your IDE. Wrap existing TypeScript code in a Flyde node and use it in your flows. Run flows from existing TypeScript code, from arbitrary CLI scripts to HTTP request handlers, and even front-end code. Flows can be version-controlled, and be part of CI/CD pipelines, just like regular text-based code.