C++ Name Mangling Decoder

A symbol demangling tool that converts C++ mangled names into readable declarations for debugging, profiling, and code analysis.

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1,520+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how C++ Name Mangling Decoder processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The tool converts mangled C++ symbols into human readable declarations while preserving ABI semantics. It supports Itanium and MSVC ABIs and yields both a readable signature and a structured breakdown suitable for automation. It is designed for developers, debuggers, and CI/code analysis pipelines.
Conceptually, the system tokenizes the mangled string, applies ABI-specific grammars, resolves templates and overloads, and assembles a canonical declaration. It handles namespaces, class scopes, member functions, operators, and complex template arguments while preserving qualifiers like const and volatile.
Common workflows include turning a stack frame into a readable function, validating overload resolution, and mapping symbols to source code locations in symbol servers or profiling reports. The tool supports batch processing and outputs formats that feed into subsequent tooling or search indexers.
Unique value lies in providing both a human readable form and a machine-friendly component map (return_type, namespaces, function, parameters, templates), enabling precise programmatic analysis and easier code navigation.

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How to Use

Provide inputs: mangled_name (string), abi (Itanium or MSVC).
Optionally specify language_version and strict validation to constrain parsing.
Run the demangling operation.
Review outputs: demangled_name and structured components (return_type, namespace_path, function_name, parameter_types, template_arguments).
Use in debugging, symbolication, or code indexing; export for integration with tooling.

Frequently Asked Questions

Find Quick Answers

What ABIs are supported?

The tool supports Itanium and MSVC demangling. Itanium covers GCC/Clang style mangling common in Unix-like environments; MSVC covers Visual C++ SYMBOLs used on Windows. This allows cross-platform symbol decoding in debugging workflows.

Can outputs be used programmatically?

Yes. Outputs include a demangled_name plus a structured breakdown (return_type, namespace_path, function_name, parameter_types, template_arguments) suitable for parsing by downstream tools or symbol servers.

What happens with invalid input?

Invalid or unknown ABI inputs trigger explicit errors. Malformed mangled strings may yield partial results; the tool reports failure flags and provides best-effort reconstructions when possible.

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