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| Phoenix | |
|---|---|
 | |
| Original author(s) | Chris McCord |
| Stable release | 1.8.0[1] 
/ 5 August 2025 |
| Repository | |
| Written in | Elixir |
| Platform | BEAM |
| Type | Web framework |
| License | MIT License |
| Website | www |
Phoenix is a web development framework written in the functional programming language Elixir.
Phoenix uses a server-side model–view–controller (MVC) pattern.[2] Based on the Plug library,[3] and ultimately the Erlang HTTP server Cowboy,[4] it was developed to provide highly performant and scalable web applications. In addition to the request/response functionality provided by the underlying Cowboy server,[5] Phoenix provides soft realtime communication to external clients through WebSockets or long polling using its language agnostic channels feature.[6][7]
Two notable features of Phoenix are LiveView and HEEx. LiveView provides real-time user experiences with server-rendered HTML over HTTP and WebSocket.[8] HEEx is Phoenix's templating language which provides HTML-aware compile time checking.[9]
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