How to use this tool?

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

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

Key differences between JavaScript and Crystal

CharacteristicJavaScriptCrystal
SyntaxJavaScript has a C-like syntax with curly braces and semicolons.Crystal has a Ruby-like syntax with a focus on readability and simplicity.
ParadigmJavaScript supports multiple paradigms including object-oriented, functional, and imperative programming.Crystal is primarily an object-oriented language with support for some functional programming concepts.
TypingJavaScript is dynamically typed, meaning variable types are determined at runtime.Crystal is statically typed, meaning variable types are checked at compile-time.
PerformanceJavaScript is generally slower compared to compiled languages like Crystal.Crystal is a compiled language and can offer better performance than interpreted languages like JavaScript.
Libraries and frameworksJavaScript has a vast ecosystem of libraries and frameworks like React, Angular, and Node.js.Crystal has a smaller ecosystem of libraries and frameworks compared to JavaScript.
Community and supportJavaScript has a large and active community with extensive support and resources available.Crystal has a smaller community compared to JavaScript, but still offers support and resources.
Learning curveJavaScript has a relatively low learning curve, especially for beginners.Crystal has a steeper learning curve compared to JavaScript, especially for beginners.