Goorm, like Cloud9, is a cloud-based integrated development environment (IDE) that lets you write, run, and debug your code with just a browser. In other words, your workspace can be moved to the cloud (actually, goorm means cloud in Korean). Having heard that Cloud9 is going to shut down their service by the end of 2019, this looks a great alternative! It seems that the documentattion is still Korean language, though. Check their service here.
Goorm IDE
