Three simple steps
How to use this tool?
This free online converter translates VB6 source code into C# in three simple steps.
- Step 1
Add your VB6 code
Type, paste, or upload the VB6 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 VB6 to C# conversion
These examples show VB6 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.
VB6 code
C# code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
VB6 code
C# code
Language comparison
Key differences between VB6 and C#
| Characteristic | VB6 | C# |
|---|---|---|
| Syntax | Uses a more verbose and less structured syntax, resembling natural language. | Uses a C-style syntax that is more concise and structured. |
| Paradigm | Primarily procedural programming with some object-oriented features. | Fully supports object-oriented programming and also supports functional programming. |
| Typing | Uses late binding and is dynamically typed. | Uses static typing with strong type checking. |
| Performance | Generally slower due to its interpreted nature and older runtime. | Typically faster due to compilation to intermediate language and optimization by the CLR. |
| Libraries and frameworks | Limited to older libraries and ActiveX controls. | Rich ecosystem with .NET libraries, frameworks, and modern development tools. |
| Community and support | Smaller community with declining support as it is considered legacy. | Large and active community with extensive support and resources. |
| Learning curve | Easier for beginners due to its simplicity and visual design tools. | Steeper learning curve due to its complexity and advanced features. |
Common questions
Frequently Asked Questions
How do I convert VB6 to C#?
Paste your VB6 code into the input box, confirm the languages are set to VB6 and C#, and click Convert. CodeConvert AI analyzes your VB6 code and generates equivalent C# code in seconds, preserving the original logic and structure.
What are the main differences between VB6 and C#?
VB6 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 VB6 construct to its closest C# equivalent. See the comparison table below for the key differences between VB6 and C#.
Is the converted C# code accurate?
The AI produces high-quality C# code that preserves the behavior of your original VB6 code and follows C# conventions. It handles common patterns, data structures, and idioms for both VB6 and C#. For large or performance-critical code, review and test the C# output before using it in production.
Can I convert an entire VB6 project to C#?
You can convert VB6 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 VB6 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 VB6?
Yes. CodeConvert AI converts in both directions, so you can convert C# to VB6 just as easily using our C# to VB6 converter. Try the C# to VB6 Converter
Is the VB6 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 VB6 to C# 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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