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Online Crystal to Raku Converter

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upload iconClick to select or drop your input code file here.

You can also type the input code below.

How to use this tool?

This free online converter lets you convert code from Crystal to Raku in a click of a button. To use this converter, take the following steps -

  1. Type or paste your Crystal code in the input box.
  2. Click the convert button.
  3. The resulting Raku code from the conversion will be displayed in the output box.

Key differences between Crystal and Raku

CharacteristicCrystalRaku
SyntaxVery similar to Ruby, clean and readable.Perl-inspired, flexible, supports multiple syntactic styles.
ParadigmObject-oriented, supports functional programming.Multi-paradigm: object-oriented, functional, concurrent, and more.
TypingStatic, strong typing with type inference.Gradual typing, supports both static and dynamic typing.
PerformanceCompiled to native code, high performance close to C.Interpreted (with JIT), generally slower than Crystal.
Libraries and frameworksGrowing ecosystem, fewer libraries than mature languages.Smaller ecosystem, but has CPAN-like module system (zef).
Community and supportActive but relatively small community, good documentation.Niche community, strong legacy from Perl, helpful resources.
Learning curveEasy for Ruby developers, gentle for beginners.Steeper due to flexibility and unique features.