JSON to Protocol Buffer Converter: Generate .proto Files

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Convert JSON data into Google's Protocol Buffer format with support for nested structures, arrays, and customizable options. Perfect for creating type definitions and data contracts.

✓ Nested Support✓ Type Inference✓ .proto Download

JSON Input

Protocol Buffer

Key Features

Conversion Features

  • •

    Smart Type Inference

    Automatically detect appropriate Protocol Buffer types

  • •

    Nested Objects

    Support for complex nested data structures

  • •

    Array Support

    Convert arrays to repeated fields

Customization

  • •

    Package Names

    Specify custom package names for organization

  • •

    Field Options

    Configure optional fields and naming conventions

  • •

    Export Options

    Download as .proto file or copy to clipboard

Common Use Cases

API Development

  • • Service definitions
  • • Data contracts
  • • Message formats
  • • Type schemas

Data Exchange

  • • Cross-platform comms
  • • Service integration
  • • Data serialization
  • • Message passing

Development

  • • Code generation
  • • Type definitions
  • • Schema creation
  • • API documentation

Frequently Asked Questions

What is Protocol Buffer format?

Protocol Buffers (protobuf) is Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data. It's smaller, faster, and simpler than XML or JSON.

How are data types handled?

The converter automatically infers appropriate protobuf types from your JSON data. Numbers are converted to int32 or double, strings remain as strings, and nested objects become separate message types.

What about nested structures?

Nested objects in your JSON are automatically converted into separate Protocol Buffer message definitions, maintaining the hierarchy and relationships between your data.

Is my data secure?

Yes, all conversion happens directly in your browser. No data is sent to any server or stored anywhere. Your JSON data remains completely private and secure.

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