Open-source Elixir, Erlang and Gleam frameworks

9 Elixir, Erlang and Gleam frameworks whose code is public under an OSI-approved license, rated for privacy with evidence. Picks first, then by score.

1. Ash Framework Grade B

   Declarative application framework for Elixir that models resources, actions and policies, and derives APIs and data layers from them.

   MIT-licensed. Source code

2. Cowboy Grade B

   Small HTTP server for Erlang/OTP with support for HTTP/1.1, HTTP/2, WebSocket and REST handlers.

   ISC-licensed. Source code

3. Lustre Grade B

   Gleam framework for building web user interfaces with a model-view-update architecture, running in the browser or as server components.

   MIT-licensed. Source code

4. Nerves Grade B

   Elixir platform for building and deploying embedded software on devices such as the Raspberry Pi, producing minimal Linux firmware images.

   Apache-2.0-licensed. Source code

5. Phoenix Grade B

   Web framework for Elixir with a model-view-controller structure, LiveView for server-rendered interactive pages and channels for real-time communication.

   MIT-licensed. Source code

6. Plug Grade B

   Specification and library for composable web modules in Elixir, with connection adapters for web servers and a router.

   Apache-2.0-licensed. Source code

7. Wisp Grade B

   Web framework for Gleam on the BEAM, built around request handler functions and middleware.

   Apache-2.0-licensed. Source code

8. Hologram Grade D

   Full-stack Elixir web framework that compiles client-side Elixir code to JavaScript, so pages and components are written in Elixir.

   Apache-2.0-licensed. Source code

9. Nitrogen Web Framework Grade D

   Event-driven web framework for Erlang that builds pages from Erlang records and updates them over Ajax or WebSocket.

   MIT-licensed. Source code

Compare all 9 Elixir, Erlang and Gleam frameworks, open source or not.