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VB to C++ Converter

VB to C++ Converter produces great C++ code from VB.NET, saving you hours of painstaking work and valuable time.

Try the Free Edition

  • Free
  • High-quality conversion
  • Convert projects up to 1000 lines
  • Convert snippets up to 100 lines

Purchase the Premium Edition

  • $129 US (15-day money-back guarantee)
  • High-quality conversion
  • Unlimited project conversion length
  • Unlimited snippet conversion length

10 Second Overview

*Scroll right to see VB to C++ Converter in action!

Key Benefits

The Most Comprehensive VB.NET to C++ Converter


You have the option of producing either native C++ code or C++/CLI code. The conversion defaults to some aspects of modern C++, but you have options to prevent this.

You can select VB projects or folders to convert.  All ".vb" files within that project or folder will be converted and written as either combined declaration/implementation header files or as traditionally separated .h/.cpp files to the directory you specify.  However, VB to C++ Converter does not construct the new C++ project file (e.g., the .vcxproj file in Visual Studio).  This is due to the lack of one-to-one correspondence between VB project types and formats and C++ project types and formats.

Yes - try out our Free Edition to see the conversion details.  For native C++ output, we convert VB delegates to function pointers using std::function. For C++/CLI output, delegates are directly converted to C++/CLI delegates.

Your existing code is left completely intact.  The new C++ files are written to the new location that you specify.

No.  Our converter accuracy is the highest in the industry, but there will be some minor tweaks required in all but the most trivial conversions.  Read the rest of the FAQ to get an idea of a few things that are not converted. It is critical to try some of your own code when comparing VB to C++ converters since it is very easy to create a converter that does very well on a specific sample set.  The most important criterion is how well the converter does on your own code, and this is where VB to C++ Converter will clearly show its superiority.

No.  The most effective and safest way to get from VB6 to C++ is to use an upgrade tool (3rd party or the VS 2008 Upgrade Wizard) on your VB6 code, and then use VB to C++ Converter on the resulting VB code.

  • Same class constructor calls are not supported in C++ prior to C++11.  If you don't select the option to preserve same-class constructor chaining, these cases are marked with "ToDo" comments.
  • For the native C++ output option, only some of the .NET Framework references are converted to native C++ equivalents. You will need to adjust most of these references yourself. The converter offers options to use your own custom replacements.
  • For the native C++ output option, VB to C++ Converter cannot ensure proper deallocation of pointer variables. In some cases, a call to the delete operator is made, but in general correct memory deallocation is not included in the conversion. However, the converter contains options for converting to smart pointers.
  • For the native C++ output option, attributes and event declarations are commented out since there is no direct native C++ equivalent to .NET attributes and events.
  • There will be occasional qualifier symbol adjustments required.  For example, it is possible that VB to C++ Converter fails to determine whether a particular VB dot operator should be replaced by a C++ arrow, double colon, or dot.  If type analysis fails to determine the equivalent, heuristics are used to determine the most probable equivalent.
  • For the native C++ output option, there is no acceptable equivalent to an exception 'Finally' clause.
  • Since VB to C++ Converter does not map to a particular C++ project type, the VB 'Main' method is left in it's original location and converted literally.  Depending on the C++ project type, you will need to adjust the location and structure of the main method.
  • If the VB project did not have 'Option Strict On' set, then you'll likely have a number of cases where different types are compared with each other - these may need adjustment.
  • Although most On Error GoTo statements are converted, some elements of classic VB unstructured error handling (On Error Resume Next, On Error GoTo -1, etc.) are not converted.  These statements are marked as a 'ToDo' task. Also, all references to the VB Err object are not converted and marked as a 'ToDo' task.
  • 'When' statements in 'Catch' blocks (which have no equivalent in C++) must be manually adjusted.  These are commented out and combined with a warning comment.
  • Universal Windows Platform apps (formerly 'Metro', 'WinRT', or 'Windows Store' apps) are converted, but the converter cannot discover type information which is inside .winmd files. There are a couple of possible work-arounds, but they will not work consistently for all users. This means that there will be more manual adjustments required for Universal app conversions, until Microsoft provides a coherent approach to reading .winmd files from desktop applications, such as our converters.

Additional Resources

VB.NET and C++ equivalents chart

VB.NET to C++ conversion tips

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