The Protocol Buffers ecosystem stretches far beyond Google's official compiler. Below is an interactive explorer showcasing the most popular tools, plugins, and serialization libraries used by developers to compile, lint, format, validate, and transport Protobuf messages. Missing a tool or library? Submit a project to help grow the registry.
Protocol Buffers (Google)
Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data. Contains the protoc compiler, code generator stubs, and official runtimes.
ConnectRPC
BY connectrpc
A simple, modern, multi-protocol alternative to gRPC for Go, TypeScript, Kotlin, Swift, and Python. Supports gRPC, gRPC-Web, and Connect HTTP protocols natively.
connect-rust
BY anthropics
A Tower-based Rust implementation of the ConnectRPC protocol, supporting Connect, gRPC, and gRPC-Web.
protoc-gen-grpc-gateway
Automatically generates a reverse proxy server that translates RESTful JSON APIs into gRPC, allowing you to support both protocols easily.
protovalidate
BY bufbuild
Runtime validation for Protobuf messages using rules defined directly in your .proto files.
protobuf-es
BY bufbuild
The official ECMAScript runtime and code generator (protoc-gen-es) for Protocol Buffers from Buf.
Twirp
BY twitchtv
A simple and minimalist RPC framework by Twitch. It focuses on reliability and simplicity, using Protobuf over HTTP/1.1 without the complexity of gRPC.
protoc-gen-doc
BY pseudomuto
Generates beautiful documentation (HTML, Markdown, PDF) from your .proto files.