LICENSEWARE
Contribute
Publisher · Open source

Erlang/OTP

Erlang/OTP is the Erlang programming language and its Open Telecom Platform libraries and middleware, developed and maintained by the Erlang/OTP unit at Ericsson. It is released under the Apache License 2.0.

Licensing at a Glance

  • Open source

  1. Since OTP 18.0, Erlang/OTP is released under the Apache License 2.0.[1]

  2. Releases before Erlang/OTP 18.0 were released under the Erlang Public License (EPL), a derivative work of the Mozilla Public License.[2]

  3. Erlang was originally developed at the Ericsson Computer Science Laboratory, and its main developer and maintainer is the Erlang/OTP unit at Ericsson.[3]

  4. The Erlang/OTP source repository carries the Apache License 2.0 in its LICENSE.txt file.[4]

Products

References

  1. About - Erlang/OTP · erlang.org · retrieved 2026-09-27
  2. Downloads - Erlang/OTP · erlang.org · retrieved 2026-09-27
  3. About - Erlang/OTP · erlang.org · retrieved 2026-09-27
  4. erlang/otp LICENSE.txt · github.com · retrieved 2026-09-27
Esc