Three simple steps
How to use this tool?
This free online converter translates Erlang source code into Crystal in three simple steps.
- Step 1
Add your Erlang code
Type, paste, or upload the Erlang code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Crystal.
- Step 3
Review the result
Review, copy, or download the resulting Crystal code from the output editor.
See it in action
Examples of Erlang to Crystal conversion
These examples show Erlang source code and the corresponding Crystal translation. Generated results can vary as AI models are updated.
Example 1
Is String Palindrome
Program that checks if a string is a palindrome or not.
Erlang code
Crystal code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Erlang code
Crystal code
Language comparison
Key differences between Erlang and Crystal
| Characteristic | Erlang | Crystal |
|---|---|---|
| Syntax | Erlang has a unique syntax that is based on Prolog. | Crystal has a syntax similar to Ruby. |
| Paradigm | Erlang is a concurrent, functional programming language. | Crystal is a statically-typed, object-oriented programming language. |
| Typing | Erlang is dynamically typed. | Crystal is statically typed. |
| Performance | Erlang is known for its high concurrency and fault-tolerance capabilities. | Crystal is designed for high performance and has a low-level syntax. |
| Libraries and frameworks | Erlang has a rich set of libraries and frameworks for building distributed systems. | Crystal has a growing ecosystem of libraries and frameworks, but it is not as extensive as Erlang's. |
| Community and support | Erlang has an active community and good support. | Crystal has a smaller community and support compared to Erlang. |
| Learning curve | Erlang has a steep learning curve due to its unique syntax and functional programming concepts. | Crystal has a relatively low learning curve, especially for developers familiar with Ruby. |
Common questions
Frequently Asked Questions
How do I convert Erlang to Crystal?
Paste your Erlang code into the input box, confirm the languages are set to Erlang and Crystal, and click Convert. CodeConvert AI analyzes your Erlang code and generates equivalent Crystal code in seconds, preserving the original logic and structure.
What are the main differences between Erlang and Crystal?
Erlang and Crystal differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Erlang construct to its closest Crystal equivalent. See the comparison table below for the key differences between Erlang and Crystal.
Is the converted Crystal code accurate?
The AI produces high-quality Crystal code that preserves the behavior of your original Erlang code and follows Crystal conventions. It handles common patterns, data structures, and idioms for both Erlang and Crystal. For large or performance-critical code, review and test the Crystal output before using it in production.
Can I convert an entire Erlang project to Crystal?
You can convert Erlang files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Erlang to Crystal. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Crystal back to Erlang?
Yes. CodeConvert AI converts in both directions, so you can convert Crystal to Erlang just as easily using our Crystal to Erlang converter. Try the Crystal to Erlang Converter
Is the Erlang to Crystal converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Erlang to Crystal without an account for up to 2 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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