PythonAnywhere is described as 'Python development and hosting environment that displays in your web browser and runs on cloud servers. The servers are already set up with everything you need: hundreds of useful Python packages and web frameworks are supported out of the box' and is a IDE in the development category. There are more than 50 alternatives to PythonAnywhere for a variety of platforms, including Web-based, SaaS, Self-Hosted, Windows and Linux apps. The best PythonAnywhere alternative is Heroku. It's not free, so if you're looking for a free alternative, you could try AWS Cloud9 or Amazon Web Services. Other great apps like PythonAnywhere are Google App Engine, Ideone, Github Codespaces and Google Cloud Platform.