CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration. CodePen is a playground for the front end side of the web. It's all about inspiration, education, and sharing.

In Fastgen you sequence 'actions' to form rest APIs and workflows through a drag-and-drop interface. Actions are essentially functions that perform specific tasks such as sending an HTTP request, checking for conditions or interacting with a database.