How to use this tool?

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

Examples

The following are examples of code conversion from Crystal to Lua 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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Lua

Example 2 - Even or Odd

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

Crystal

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Lua

Key differences between Crystal and Lua

CharacteristicCrystalLua
SyntaxCrystal has a syntax similar to Ruby, with some additional features like static typing.Lua has a simple and lightweight syntax, with a focus on simplicity and ease of use.
ParadigmCrystal supports object-oriented programming and has some functional programming features.Lua is primarily a procedural programming language, but it also supports some object-oriented programming concepts.
TypingCrystal has static typing, which means variables have predefined types that are checked at compile-time.Lua has dynamic typing, which means variables can hold values of any type and their types are determined at runtime.
PerformanceCrystal is known for its high performance, as it compiles to native code and has a low-level execution model.Lua is designed for simplicity and portability, so its performance may not be as high as some other languages.
Libraries and frameworksCrystal has a growing ecosystem of libraries and frameworks, but it may not have as many options as more established languages.Lua has a wide range of libraries and frameworks available, including ones for game development, scripting, and embedded systems.
Community and supportCrystal has a smaller community compared to more popular languages, but it is growing and has active support from its community.Lua has a large and active community, with extensive documentation and support available.
Learning curveCrystal has a moderate learning curve, especially for developers familiar with Ruby or other similar languages.Lua has a relatively low learning curve, as it has a simple syntax and a small set of core features.