Three simple steps
How to use this tool?
This free online converter translates Raku source code into Kotlin in three simple steps.
- Step 1
Add your Raku code
Type, paste, or upload the Raku code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Kotlin.
- Step 3
Review the result
Review, copy, or download the resulting Kotlin code from the output editor.
Language comparison
Key differences between Raku and Kotlin
| Characteristic | Raku | Kotlin |
|---|---|---|
| Syntax | Flexible and expressive, supports multiple programming styles, allows for custom operators and grammars, and is known for its rich and sometimes complex syntax. | Concise, modern, and statically structured syntax, designed to be easy to read and write, and interoperable with Java. |
| Paradigm | Multi-paradigm: supports procedural, object-oriented, functional, concurrent, and reactive programming. | Primarily object-oriented and functional, with strong support for imperative and declarative styles. |
| Typing | Gradually typed: supports both dynamic and static typing, with optional type annotations. | Statically typed with type inference, ensuring type safety at compile time. |
| Performance | Generally slower due to its dynamic features and rich runtime, though performance is improving. | High performance, comparable to Java, as it compiles to JVM bytecode or native binaries. |
| Libraries and frameworks | Smaller ecosystem with fewer libraries and frameworks, though it has a growing module repository (Raku Modules). | Large ecosystem, can use all Java libraries and frameworks, plus Kotlin-specific ones like Ktor and kotlinx. |
| Community and support | Smaller, passionate community with active development, but less corporate backing and fewer resources. | Large and rapidly growing community, strong support from JetBrains and Google, extensive documentation and resources. |
| Learning curve | Steep learning curve due to its flexible syntax and many features, but powerful once mastered. | Gentle learning curve, especially for those familiar with Java or modern programming languages. |
Common questions
Frequently Asked Questions
How do I convert Raku to Kotlin?
Paste your Raku code into the input box, confirm the languages are set to Raku and Kotlin, and click Convert. CodeConvert AI analyzes your Raku code and generates equivalent Kotlin code in seconds, preserving the original logic and structure.
What are the main differences between Raku and Kotlin?
Raku and Kotlin differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Raku construct to its closest Kotlin equivalent. See the comparison table below for the key differences between Raku and Kotlin.
Is the converted Kotlin code accurate?
The AI produces high-quality Kotlin code that preserves the behavior of your original Raku code and follows Kotlin conventions. It handles common patterns, data structures, and idioms for both Raku and Kotlin. For large or performance-critical code, review and test the Kotlin output before using it in production.
Can I convert an entire Raku project to Kotlin?
You can convert Raku 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 Raku to Kotlin. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Kotlin back to Raku?
Yes. CodeConvert AI converts in both directions, so you can convert Kotlin to Raku just as easily using our Kotlin to Raku converter. Try the Kotlin to Raku Converter
Is the Raku to Kotlin 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 Raku to Kotlin 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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