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Online Swift to Kotlin Converter

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upload iconClick to select or drop your input code file here.

You can also type the input code below.

How to use this tool?

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

  1. Type or paste your Swift code in the input box.
  2. Click the convert button.
  3. The resulting Kotlin code from the conversion will be displayed in the output box.

Examples

The following are examples of code conversion from Swift to Kotlin 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.

Swift

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Kotlin

Example 2 - Even or Odd

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

Swift

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Kotlin

Key differences between Swift and Kotlin

CharacteristicSwiftKotlin
SyntaxSwift has a syntax that is similar to many other modern programming languages, with a focus on readability and simplicity.Kotlin has a syntax that is also similar to many modern programming languages, with a focus on conciseness and expressiveness.
ParadigmSwift is a multi-paradigm language that supports both object-oriented and functional programming.Kotlin is a multi-paradigm language that supports both object-oriented and functional programming.
TypingSwift is a statically-typed language, meaning that variable types are checked at compile-time.Kotlin is a statically-typed language, meaning that variable types are checked at compile-time.
PerformanceSwift is known for its high performance, as it is designed to be fast and efficient.Kotlin is also known for its good performance, although it may not be as optimized as Swift in some cases.
Libraries and frameworksSwift has a rich ecosystem of libraries and frameworks, including popular ones like SwiftUI and Alamofire.Kotlin has a growing ecosystem of libraries and frameworks, with popular ones like Ktor and Anko.
Community and supportSwift has a large and active community, with good support from Apple and a dedicated website for documentation and resources.Kotlin also has a growing community, with support from JetBrains and a dedicated website for documentation and resources.
Learning curveSwift has a relatively steep learning curve, especially for beginners with no prior programming experience.Kotlin has a relatively gentle learning curve, especially for developers familiar with Java or other similar languages.

Frequently Asked Questions

How do I convert Swift to Kotlin using CodeConvert AI?

Simply paste your Swift code into the input box and click the Convert button. Our AI will analyze your Swift code and produce equivalent Kotlin code in seconds, preserving the original logic and structure.

Is the converted Kotlin code accurate?

The AI produces high-quality Kotlin code that preserves the logic and functionality of your original Swift code. It handles common patterns, data structures, and idioms for both Swift and Kotlin. For complex or performance-critical code, we recommend reviewing and testing the output.

Can I also convert Kotlin back to Swift?

Yes! CodeConvert AI supports bidirectional conversion. You can convert Kotlin to Swift just as easily by using our Kotlin to Swift converter. Try the Kotlin to Swift Converter

Is the Swift to Kotlin converter free?

Yes. You can convert Swift to Kotlin for free without creating an account for up to 5 conversions per day. For higher limits and additional features, you can sign up for a Pro account.

What types of Swift code can be converted to Kotlin?

This tool can convert a wide range of Swift code to Kotlin, from simple functions and algorithms to complete programs with classes, error handling, and complex logic. The AI understands both Swift and Kotlin idioms and produces natural-looking code.

What are the benefits of signing in?

Signing in unlocks CodeConvert AI's Pro tool, which includes more powerful AI models, an integrated chat assistant, code execution, personal notes, conversion history, and an enhanced interface. Every account gets 5 free credits per day to explore the full Pro experience.