🎉 Exercism Research is now launched. Help Exercism, help science and have some fun at research.exercism.io 🎉


Join the Erlang Track
Erlang is a functional language, designed for use in real-time distributed systems. It's used within telecom networks, and is notable for simple message passing with lightweight independent processes.
Join the Erlang Track
Track mentors

8 Mentors

Our mentors are friendly, experienced Erlang developers who will help teach you new techniques and tricks.
Track students

2,333 Students

Join thousands of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

77 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Erlang


hello() ->
  "Hello, World!".

Erlang is a functional programming language, used for creating real-time distributed systems, which can easily scale in size.

It's best for concurrent applications, such as instant messaging and banking platforms, as each function call has their own process and operates independently. This is useful as code can run for a very long time without issues occuring. Also, processes and message passing are all built into the language by default - no need for any extra libraries!

It was designed within Ericsson, a Swedish telecommunications company, for use in their networks, and is currently used inside telecommunication equipment.

Join the Erlang track

Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

Relaxed. Encouraging. Supportive.

Meet the Erlang Track mentors

Once you join the Erlang language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Norbert Melzer

Norbert Melzer My Blog

I got into erlang because elixir was not available at my university. I have not yet been able to work professionally with it, but used it for personal tools some times.
Avatar of Yauheni Tsiarokhin

Yauheni Tsiarokhin

functional programming enthusiast
Avatar of Brandon Gottlob

Brandon Gottlob Blog

After learning Erlang a few years ago, I became interested in building reliable, fault-tolerant systems. I hope to introduce others to Erlang and help spark their interests as well!
Avatar of Shanti C

Shanti C https://github.com/shantiii

I've written a lot of Erlang and Elixir for previous jobs. I've even contributed to the languages! Now I get paid a lot to be sad about PHP, but my love for Erlang will never die.
Avatar of Jan Uhlig

Jan Uhlig https://github.com/juhlig

Having learned Erlang out of interest several years ago, I have been using it in several private and business projects since.
Avatar of Shankar Shastri

Shankar Shastri GitHub Profile

Lover Of Pure Functional Programming.
Fun. Challenging. Interesting

Community-sourced Erlang exercises

These are a few of the 77 exercises on the Erlang track. You can see all the exercises here.

control flow conditionals
Word Count
Rotational Cipher
Saddle Points
Hello World
Passionate. Knowledgeable. Creative.

Meet the Erlang Track maintainers

The Erlang Maintainers are the brains behind the Erlang Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Norbert Melzer

Norbert Melzer

Found out about erlang via exercism, got hooked by its lightweight processes and how they are used as first class citizen. After fixing some trivial bugs in the track, I have been added to the team.

Get started with the Erlang track. As with everything on Exercism, it's 100% free!

Join the Erlang Track