Three simple steps
How to use this tool?
This free online converter translates TypeScript source code into Kotlin in three simple steps.
- Step 1
Add your TypeScript code
Type, paste, or upload the TypeScript 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.
See it in action
Examples of TypeScript to Kotlin conversion
These examples show TypeScript source code and the corresponding Kotlin 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.
TypeScript code
Kotlin code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
TypeScript code
Kotlin code
Language comparison
Key differences between TypeScript and Kotlin
| Characteristic | TypeScript | Kotlin |
|---|---|---|
| Syntax | TypeScript has a syntax similar to JavaScript with some additional features such as static typing, interfaces, and classes. | Kotlin has a syntax similar to Java with some additional features such as null safety, extension functions, and data classes. |
| Paradigm | TypeScript is an object-oriented programming language that supports functional programming concepts. | Kotlin is a multi-paradigm programming language that supports both object-oriented and functional programming concepts. |
| Typing | TypeScript is a statically typed language that supports type annotations and type inference. | Kotlin is a statically typed language that supports type inference and null safety. |
| Performance | TypeScript is generally slower than JavaScript due to the additional type checking and compilation process. | Kotlin is generally faster than Java due to its more efficient bytecode generation and optimization. |
| Libraries and frameworks | TypeScript has a large and growing ecosystem of libraries and frameworks, including Angular, React, and Vue. | Kotlin has a growing ecosystem of libraries and frameworks, including Spring, Ktor, and Android Jetpack. |
| Community and support | TypeScript has a large and active community with good documentation and support from Microsoft. | Kotlin has a growing community with good documentation and support from JetBrains. |
| Learning curve | TypeScript has a moderate learning curve for developers familiar with JavaScript and object-oriented programming. | Kotlin has a moderate learning curve for developers familiar with Java and object-oriented programming. |
Common questions
Frequently Asked Questions
How do I convert TypeScript to Kotlin?
Paste your TypeScript code into the input box, confirm the languages are set to TypeScript and Kotlin, and click Convert. CodeConvert AI analyzes your TypeScript code and generates equivalent Kotlin code in seconds, preserving the original logic and structure.
What are the main differences between TypeScript and Kotlin?
TypeScript 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 TypeScript construct to its closest Kotlin equivalent. See the comparison table below for the key differences between TypeScript and Kotlin.
Is the converted Kotlin code accurate?
The AI produces high-quality Kotlin code that preserves the behavior of your original TypeScript code and follows Kotlin conventions. It handles common patterns, data structures, and idioms for both TypeScript and Kotlin. For large or performance-critical code, review and test the Kotlin output before using it in production.
Can I convert an entire TypeScript project to Kotlin?
You can convert TypeScript 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 TypeScript 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 TypeScript?
Yes. CodeConvert AI converts in both directions, so you can convert Kotlin to TypeScript just as easily using our Kotlin to TypeScript converter. Try the Kotlin to TypeScript Converter
Is the TypeScript 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 TypeScript 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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