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Join Exercism’s Raku Track for access to 75 exercises with automatic analysis of your code and personal mentoring, all 100% free.

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About Raku

say my $candidates = all
  «Alphabet subdermatoglyphic
  ‘Emily Jung Schwartzkopf’».pick: 2;

say “All isograms? {.so ?? ‘✔’ !! ‘❌’}”
  given is-isogram($candidates);

sub is-isogram (Str $_ --> Bool) {
  .uc.comb(/<:L>/).Bag ⊆ 'A'..'Z' }

Key Features of Raku



Raku programs are naturally more concise and readable, thanks to its innovative design.


Raku is a supremely flexible and mutable language, adaptable to your own style of programming.


Raku is developed by a team of dedicated and enthusiastic open source volunteers.


Raku has a high level concurrency model, both for implicit as well as explicit multiprocessing.

Regexes and Grammars

Raku has powerful, extensible grammars for parsing data or code (which Raku uses to parse itself!)

A Welcoming Community

Go to #raku (irc.libera.chat) and someone will be glad to help you get started.

Get mentored the Raku way

Every language has its own way of doing things. Raku is no different. Our mentors will help you learn to think like a Raku developer and how to write idiomatic code in Raku. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in Raku - they'll help you discover the things you don't know that you don't know.

Learn more about mentoring

Community-sourced Raku exercises

The Raku track on Exercism has 75 exercises to help you write better code. Discover new exercises as you progress and get engrossed in learning new concepts and improving the way you currently write.

See all Raku exercises

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The best part, it’s 100% free for everyone.