Three simple steps
How to use this tool?
This free online converter translates VB.NET source code into Kotlin in three simple steps.
- Step 1
Add your VB.NET code
Type, paste, or upload the VB.NET 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 VB.NET to Kotlin conversion
These examples show VB.NET 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.
VB.NET code
Kotlin code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
VB.NET code
Kotlin code
Language comparison
Key differences between VB.NET and Kotlin
| Characteristic | VB.NET | Kotlin |
|---|---|---|
| Syntax | VB.NET uses a syntax similar to the BASIC programming language, with keywords such as 'If', 'For', and 'While'. It also supports the use of 'Option Strict' to enforce type checking. | Kotlin has a modern and concise syntax, influenced by languages like Java and Scala. It uses keywords such as 'if', 'for', and 'while', and supports features like null safety and extension functions. |
| Paradigm | VB.NET is primarily an object-oriented programming language, but it also supports procedural and functional programming paradigms. | Kotlin is a statically-typed programming language that supports both object-oriented and functional programming paradigms. It encourages immutability and provides features like higher-order functions and lambda expressions. |
| Typing | VB.NET is a statically-typed language, which means that variable types are checked at compile-time. | Kotlin is also a statically-typed language, but it provides type inference, allowing developers to omit explicit type declarations in many cases. |
| Performance | VB.NET is compiled to Intermediate Language (IL) code, which is then executed by the .NET runtime. It offers good performance, but it may not be as fast as languages like C++ or Rust. | Kotlin is compiled to Java bytecode, which can be executed by the Java Virtual Machine (JVM). It has similar performance characteristics to Java. |
| Libraries and frameworks | VB.NET has access to the extensive .NET Framework, which provides a wide range of libraries and frameworks for various purposes, including web development, database access, and GUI development. | Kotlin can leverage the existing Java libraries and frameworks, as it is fully interoperable with Java. It also has its own ecosystem of libraries and frameworks, such as Ktor for web development and Room for database access. |
| Community and support | VB.NET has a smaller community compared to languages like C# or Java. However, it still has active support from Microsoft and a dedicated user base. | Kotlin has gained popularity in recent years and has a growing community. It is officially supported by JetBrains, the company behind IntelliJ IDEA, and has good integration with the Android development ecosystem. |
| Learning curve | VB.NET has a relatively low learning curve, especially for developers familiar with BASIC or other .NET languages like C#. It has a more verbose syntax compared to Kotlin. | Kotlin has a moderate learning curve. It is designed to be easy to learn for Java developers, as it shares many similarities with Java. It has a more concise syntax compared to VB.NET. |
Common questions
Frequently Asked Questions
How do I convert VB.NET to Kotlin?
Paste your VB.NET code into the input box, confirm the languages are set to VB.NET and Kotlin, and click Convert. CodeConvert AI analyzes your VB.NET code and generates equivalent Kotlin code in seconds, preserving the original logic and structure.
What are the main differences between VB.NET and Kotlin?
VB.NET 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 VB.NET construct to its closest Kotlin equivalent. See the comparison table below for the key differences between VB.NET and Kotlin.
Is the converted Kotlin code accurate?
The AI produces high-quality Kotlin code that preserves the behavior of your original VB.NET code and follows Kotlin conventions. It handles common patterns, data structures, and idioms for both VB.NET and Kotlin. For large or performance-critical code, review and test the Kotlin output before using it in production.
Can I convert an entire VB.NET project to Kotlin?
You can convert VB.NET 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 VB.NET 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 VB.NET?
Yes. CodeConvert AI converts in both directions, so you can convert Kotlin to VB.NET just as easily using our Kotlin to VB.NET converter. Try the Kotlin to VB.NET Converter
Is the VB.NET 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 VB.NET to Kotlin 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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