Protocol Buffers Tools

Generate, validate, and work with Protocol Buffers schemas

JSON to Proto Schema

Generate Protocol Buffers schema from JSON data

About Protocol Buffers

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

Key Features:

  • Efficient: Smaller size and faster than XML/JSON
  • Type-safe: Strongly typed with schema validation
  • Versioning: Forward and backward compatibility
  • Multi-language: Support for many programming languages
  • RPC Support: Built-in support for gRPC

Common Use Cases:

  • Microservices communication (gRPC)
  • Data storage and serialization
  • Configuration files
  • Network protocols
  • Inter-process communication

Proto3 vs Proto2:

  • Proto3: Simplified syntax, all fields optional by default
  • Proto2: Explicit required/optional/repeated, default values

Field Types:

Common scalar types: double, float, int32, int64, uint32, uint64, sint32, sint64, fixed32, fixed64, sfixed32, sfixed64, bool, string, bytes