How to use this tool?

This free online converter lets you convert code from Crystal to Swift 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 Swift code from the conversion will be displayed in the output box.

Examples

The following are examples of code conversion from Crystal to Swift using this converter. Note that you may not always get the same code since it is generated by an AI language model which is not 100% deterministic and gets updated from time to time.

Example 1 - Is String Palindrome

Program that checks if a string is a palindrome or not.

Crystal

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Swift

Example 2 - Even or Odd

A well commented function to check if a number if odd or even.

Crystal

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Swift

Key differences between Crystal and Swift

CharacteristicCrystalSwift
SyntaxCrystal has a syntax similar to Ruby, with some differences in syntax and features.Swift has a syntax similar to Objective-C, with some differences in syntax and features.
ParadigmCrystal supports object-oriented programming and metaprogramming.Swift supports object-oriented programming and functional programming.
TypingCrystal is statically typed with type inference.Swift is statically typed with type inference.
PerformanceCrystal is known for its high performance and low memory usage.Swift is known for its high performance and low memory usage.
Libraries and frameworksCrystal has a smaller ecosystem of libraries and frameworks compared to Swift.Swift has a large ecosystem of libraries and frameworks.
Community and supportCrystal has a smaller community and less support compared to Swift.Swift has a large community and strong support.
Learning curveCrystal has a relatively small learning curve, especially for developers familiar with Ruby.Swift has a moderate learning curve, especially for developers familiar with Objective-C.