- connect High performance middleware framework
- express Fast, unopinionated, minimalist web framework
- oauth Library for interacting with OAuth 1.0, 1.0A, 2 and Echo. Provides simplified client access and allows for construction of more complex apis and OAuth providers.
- socket.io node.js realtime framework server
- swig A simple, powerful, and extendable templating engine for node.js and browsers, similar to Django, Jinja2, and Twig.