PythonAnywhere is an online integrated development environment (IDE) and web hosting service (Platform as a service) based on the Python programming language.

[1] Founded by Giles Thomas and Robert Smithson in 2012, it provides in-browser access to server-based Python and Bash command-line interfaces, along with a code editor with syntax highlighting.

Program files can be transferred to and from the service using the user's browser.

On 16 October 2012 the product was acquired by a new company, PythonAnywhere LLP, who took on the existing development team.

[5] PythonAnywhere is described as "the simplest way to deploy web2py applications" in the official book on the web framework,[10] is suggested when learning NumPy,[11] is deployment platform of choice in Django Girls tutorial,[12] and is recommended as a way of hosting machine learning-based web applications.