How to use this tool?

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

  1. Type or paste your Java 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 Java and Crystal

SyntaxJava uses a C-style syntax with curly braces and semicolons.Crystal uses a Ruby-like syntax with a focus on readability and simplicity.
ParadigmJava is primarily an object-oriented programming language with support for imperative and functional programming.Crystal is a statically-typed, object-oriented language with a focus on simplicity and performance.
TypingJava is statically-typed, which means that variable types are checked at compile-time.Crystal is also statically-typed, but it has a type inference system that allows for some dynamic typing.
PerformanceJava is known for its performance and is often used for high-performance applications.Crystal is designed to be fast and efficient, with performance comparable to C or C++.
Libraries and frameworksJava has a vast ecosystem of libraries and frameworks, including popular ones like Spring and Hibernate.Crystal has a smaller ecosystem of libraries and frameworks compared to Java, but it is growing steadily.
Community and supportJava has a large and active community with extensive documentation and support resources.Crystal has a smaller community compared to Java, but it is passionate and supportive.
Learning curveJava has a moderate learning curve, especially for beginners, due to its strict syntax and concepts like object-oriented programming.Crystal has a relatively steep learning curve, especially for beginners, due to its focus on performance and advanced features.