Build massively scalable soft real-time systems


OTP 23 Release

13 May 2020

The last release OTP 23

OTP 23 Release Candidate 3

22 Apr 2020

The last release candidate for OTP 23

Erlang OTP 23.0 Release Candidate 2

26 Mar 2020

Second release candidate is now available for testing!


What is Erlang?


Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of its uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance.

Erlang Quickstart

What is OTP?


OTP is set of Erlang libraries and design principles providing middle-ware to develop these systems. It includes its own distributed database, applications to interface towards other languages, debugging and release handling tools.

Getting Started with OTP