Three simple steps
How to use this tool?
This free online converter translates Kotlin source code into TypeScript in three simple steps.
- Step 1
Add your Kotlin code
Type, paste, or upload the Kotlin code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into TypeScript.
- Step 3
Review the result
Review, copy, or download the resulting TypeScript code from the output editor.
See it in action
Examples of Kotlin to TypeScript conversion
These examples show Kotlin source code and the corresponding TypeScript 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.
Kotlin code
TypeScript code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Kotlin code
TypeScript code
Language comparison
Key differences between Kotlin and TypeScript
| Characteristic | Kotlin | TypeScript |
|---|---|---|
| Syntax | Kotlin has a concise and expressive syntax that is similar to Java but with some added features such as null safety and extension functions. | TypeScript has a syntax that is similar to JavaScript but with added features such as static typing and interfaces. |
| Paradigm | Kotlin is a multi-paradigm language that supports both object-oriented and functional programming. | TypeScript is an object-oriented language that supports some functional programming concepts. |
| Typing | Kotlin has a strong, static type system that helps catch errors at compile-time. | TypeScript has a strong, static type system that helps catch errors at compile-time. |
| Performance | Kotlin is known for its high performance and is often used for developing high-performance applications. | TypeScript is not known for its performance and is often used for developing small to medium-sized applications. |
| Libraries and frameworks | Kotlin has a growing ecosystem of libraries and frameworks, including Spring Boot and Ktor. | TypeScript has a large ecosystem of libraries and frameworks, including Angular and React. |
| Community and support | Kotlin has a growing community and is backed by JetBrains, a well-known software development company. | TypeScript has a large and active community and is backed by Microsoft. |
| Learning curve | Kotlin has a relatively low learning curve for developers who are familiar with Java or other object-oriented languages. | TypeScript has a moderate learning curve for developers who are familiar with JavaScript or other object-oriented languages. |
Common questions
Frequently Asked Questions
How do I convert Kotlin to TypeScript?
Paste your Kotlin code into the input box, confirm the languages are set to Kotlin and TypeScript, and click Convert. CodeConvert AI analyzes your Kotlin code and generates equivalent TypeScript code in seconds, preserving the original logic and structure.
What are the main differences between Kotlin and TypeScript?
Kotlin and TypeScript differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Kotlin construct to its closest TypeScript equivalent. See the comparison table below for the key differences between Kotlin and TypeScript.
Is the converted TypeScript code accurate?
The AI produces high-quality TypeScript code that preserves the behavior of your original Kotlin code and follows TypeScript conventions. It handles common patterns, data structures, and idioms for both Kotlin and TypeScript. For large or performance-critical code, review and test the TypeScript output before using it in production.
Can I convert an entire Kotlin project to TypeScript?
You can convert Kotlin 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 Kotlin to TypeScript. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert TypeScript back to Kotlin?
Yes. CodeConvert AI converts in both directions, so you can convert TypeScript to Kotlin just as easily using our TypeScript to Kotlin converter. Try the TypeScript to Kotlin Converter
Is the Kotlin to TypeScript 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 Kotlin to TypeScript 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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