Three simple steps
How to use this tool?
This free online converter translates COBOL source code into VB.NET in three simple steps.
- Step 1
Add your COBOL code
Type, paste, or upload the COBOL code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into VB.NET.
- Step 3
Review the result
Review, copy, or download the resulting VB.NET code from the output editor.
See it in action
Examples of COBOL to VB.NET conversion
These examples show COBOL source code and the corresponding VB.NET 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.
COBOL code
VB.NET code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
COBOL code
VB.NET code
Language comparison
Key differences between COBOL and VB.NET
| Characteristic | COBOL | VB.NET |
|---|---|---|
| Syntax | COBOL uses a verbose and English-like syntax. | VB.NET uses a syntax similar to other BASIC languages. |
| Paradigm | COBOL is primarily procedural and imperative. | VB.NET supports multiple paradigms, including procedural, object-oriented, and event-driven. |
| Typing | COBOL is statically typed. | VB.NET is statically typed. |
| Performance | COBOL is known for its efficient performance. | VB.NET offers good performance but may not be as optimized as COBOL. |
| Libraries and frameworks | COBOL has a limited selection of libraries and frameworks. | VB.NET has a wide range of libraries and frameworks available. |
| Community and support | COBOL has a smaller community and limited support compared to VB.NET. | VB.NET has a large community and extensive support. |
| Learning curve | COBOL has a steeper learning curve due to its unique syntax and limited resources. | VB.NET has a relatively easier learning curve with abundant learning resources available. |
Common questions
Frequently Asked Questions
How do I convert COBOL to VB.NET?
Paste your COBOL code into the input box, confirm the languages are set to COBOL and VB.NET, and click Convert. CodeConvert AI analyzes your COBOL code and generates equivalent VB.NET code in seconds, preserving the original logic and structure.
What are the main differences between COBOL and VB.NET?
COBOL and VB.NET differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each COBOL construct to its closest VB.NET equivalent. See the comparison table below for the key differences between COBOL and VB.NET.
Is the converted VB.NET code accurate?
The AI produces high-quality VB.NET code that preserves the behavior of your original COBOL code and follows VB.NET conventions. It handles common patterns, data structures, and idioms for both COBOL and VB.NET. For large or performance-critical code, review and test the VB.NET output before using it in production.
Can I convert an entire COBOL project to VB.NET?
You can convert COBOL 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 COBOL to VB.NET. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert VB.NET back to COBOL?
Yes. CodeConvert AI converts in both directions, so you can convert VB.NET to COBOL just as easily using our VB.NET to COBOL converter. Try the VB.NET to COBOL Converter
Is the COBOL to VB.NET 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 COBOL to VB.NET 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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