Three simple steps
How to use this tool?
This free online converter translates Kotlin source code into C 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 C.
- Step 3
Review the result
Review, copy, or download the resulting C code from the output editor.
See it in action
Examples of Kotlin to C conversion
These examples show Kotlin source code and the corresponding C 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
C code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Kotlin code
C code
Language comparison
Key differences between Kotlin and C
| Characteristic | Kotlin | C |
|---|---|---|
| Syntax | Kotlin has a concise and expressive syntax that reduces the amount of boilerplate code required compared to C. | C has a more verbose syntax that requires more code to accomplish the same tasks compared to Kotlin. |
| Paradigm | Kotlin is a multi-paradigm language that supports both object-oriented and functional programming paradigms. | C is a procedural language that does not support object-oriented or functional programming paradigms. |
| Typing | Kotlin is a statically typed language that supports type inference, making it easier to write code without explicitly declaring types. | C is a statically typed language that requires explicit declaration of types. |
| Performance | Kotlin is generally slower than C due to its higher-level abstractions and garbage collection. | C is generally faster than Kotlin due to its lower-level abstractions and lack of garbage collection. |
| Libraries and frameworks | Kotlin has a growing ecosystem of libraries and frameworks, including popular ones like Spring and Ktor. | C has a limited ecosystem of libraries and frameworks compared to Kotlin. |
| Community and support | Kotlin has a large and active community with good support from JetBrains, the company behind the language. | C has a smaller community and less support compared to Kotlin. |
| Learning curve | Kotlin has a relatively low learning curve for developers familiar with Java or other object-oriented languages. | C has a steeper learning curve compared to Kotlin due to its lower-level abstractions and lack of modern language features. |
Common questions
Frequently Asked Questions
How do I convert Kotlin to C?
Paste your Kotlin code into the input box, confirm the languages are set to Kotlin and C, and click Convert. CodeConvert AI analyzes your Kotlin code and generates equivalent C code in seconds, preserving the original logic and structure.
What are the main differences between Kotlin and C?
Kotlin and C 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 C equivalent. See the comparison table below for the key differences between Kotlin and C.
Is the converted C code accurate?
The AI produces high-quality C code that preserves the behavior of your original Kotlin code and follows C conventions. It handles common patterns, data structures, and idioms for both Kotlin and C. For large or performance-critical code, review and test the C output before using it in production.
Can I convert an entire Kotlin project to C?
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 C. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert C back to Kotlin?
Yes. CodeConvert AI converts in both directions, so you can convert C to Kotlin just as easily using our C to Kotlin converter. Try the C to Kotlin Converter
Is the Kotlin to C 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 C without an account for up to 5 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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