Ideone allows users to develop code for a large variety of languages and then share them across various social media websites. Developed by Sphere Research
License: Free
PythonAnywhere is a comprehensive cloud-based platform primarily designed for Python web development, offering project hosting, database support, and collaboration tools, making it ideal for developers and students. In contrast, Ideone is a lightweight online compiler and debugging tool suited for quick code execution and sharing across multiple programming languages, but lacks project hosting and database functionalities.