Erlang/OTP

Small, fast, modern HTTP server for Erlang/OTP.

A description of the Erlang Runtime System ERTS and the virtual Machine BEAM.

Lisp Flavoured Erlang (LFE)

Erlang web MVC, now featuring Comet

Clojure for the Erlang VM (unofficial)

A hunky Erlang worker pool factory

simple HTTP client in Erlang

A logging framework for Erlang/OTP

Extended process registry for Erlang

Lua in Erlang

Nitrogen Web Framework for Erlang (now with websockets!)

High-performance, high-scalability distributed computing for the BEAM.

PropEr: a QuickCheck-inspired property-based testing tool for Erlang

A planet scale, highly available, transactional database built on CRDT technology

A mocking library for Erlang

A Raft implementation for Erlang and Elixir that strives to be efficient and make it easier to use multiple Raft clusters in a single system.

an erlang application for consuming, producing and manipulating json. inspired by yajl

Erlang Redis client

A Gradual type system for Erlang

Tool for developers working with systems running on the Erlang VM (BEAM). It helps with performance analysis.

A Google Protobuf implementation for Erlang

A Circuit Breaker for Erlang

An Erlang implementation of Redis

Erlang PostgreSQL client library.

MySQL/OTP – MySQL and MariaDB client for Erlang/OTP

A pure Erlang Key/Value store - based on a LSM-tree, optimised for HEAD requests

MongoDB driver for Erlang

Prometheus.io client in Erlang

Concuerror is a stateless model checking tool for Erlang programs.