Phoenix

The Elixir web framework: high-performance, fault-tolerant, and built for real-time applications with LiveView.

Phoenix is the Elixir web development framework: it leverages the Erlang Virtual Machine (VM) for fault-tolerant, highly-concurrent, and distributed systems. It follows the familiar Model-View-Controller (MVC) pattern, delivering productivity comparable to frameworks like Ruby on Rails. However, Phoenix provides superior performance, scaling to handle millions of WebSocket connections efficiently (via Channels). The key feature is LiveView: this allows developers to build rich, interactive user experiences with server-rendered HTML, drastically reducing the need for complex, dedicated front-end JavaScript code.

https://www.phoenixframework.org/