Puma

Ruby on Rails

rails/rails

Popular

Convention-over-configuration full-stack framework; Rails 8 ships Solid Queue/Cache/Cable and Kamal.

Sinatra

sinatra/sinatra

Minimal DSL for quickly building small Ruby web apps and APIs.

Hanami

hanami/hanami

Modular, clean-architecture Ruby framework positioned as an alternative to Rails.

Phoenix

phoenixframework/phoenix

Elixir framework for highly concurrent, fault-tolerant web apps with Channels for real-time features.

Phoenix LiveView

phoenixframework/phoenix_live_view

Server-rendered, real-time interactive UIs over WebSockets without writing client-side JavaScript.

Ash Framework

ash-project/ash

Rising

Declarative, resource-oriented Elixir framework that derives APIs, data layers and auth from models.

Ecto

elixir-ecto/ecto

Elixir's toolkit for data mapping, changesets, migrations and composable database queries.