XML to C++ Converter

How it works

How to use the XML to C++

1. Paste XML

   Paste an XML document or open a file. Attributes and child elements become fields; repeated elements become lists.

2. Tune the output

   Set the root type name and language-specific options. Nested objects get their own types named after their keys.

3. Use the C++ code

   Decode with auto order = nlohmann::json::parse(text).get<Order>();

How the C++ code is generated

The XML is analysed value by value. Objects inside the same array are merged, so a property that appears only in some items becomes optional, values that are sometimes null become nullable, and identical nested shapes share a single type. Names are converted to C++ conventions, with serialization annotations wherever the original key differs.

For XML input, the document is first converted to a JSON structure: attributes and child elements become properties, element text becomes a text property, and repeated elements become arrays.

Usage: Decode with auto order = nlohmann::json::parse(text).get();

Built for developers

Why developers use it

• Private by design

  Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.

• Instant results

  Output updates as you type, with precise error locations when something is wrong.

• Works offline

  Once loaded, the tool keeps working without a connection. Install it as an app if you like.

• Free, no sign-up

  No accounts, no limits, no watermarks.

FAQ

Frequently asked questions

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