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Online COBOL to Crystal Converter

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Additional Instructions

How to use this tool?

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

Type or paste your COBOL code in the input box.
Click on the "Convert" button.
The converted Crystal code will be displayed in the output box.

Examples

The following are examples of code conversion from COBOL to Crystal 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.

COBOL Code:

Crystal Code:

Example 2 - Even or Odd

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

COBOL Code:

Crystal Code:

Differences

The following are some key differences between COBOL and Crystal.

Characteristic	COBOL	Crystal
Syntax	COBOL uses a verbose and English-like syntax.	Crystal uses a syntax similar to Ruby.
Paradigm	COBOL is primarily procedural and imperative.	Crystal is a statically-typed, object-oriented language with some functional programming features.
Typing	COBOL is statically-typed.	Crystal is statically-typed with type inference.
Performance	COBOL is known for its efficiency and performance in handling large-scale business applications.	Crystal is designed for performance and aims to be as fast as C.
Libraries and frameworks	COBOL has a limited number of libraries and frameworks available compared to modern languages.	Crystal has a growing ecosystem of libraries and frameworks, leveraging the existing Ruby ecosystem.
Community and support	COBOL has a mature community and good support for legacy systems.	Crystal has a smaller but active community with growing support.
Learning curve	COBOL has a steep learning curve due to its verbose syntax and outdated concepts.	Crystal has a moderate learning curve, especially for developers familiar with Ruby.

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