Third-Party Add-ons for Protocol Buffers

This page lists code related to Protocol Buffers which is developed and maintained by third parties. You may find this code useful, but note that these projects are not affiliated with or endorsed by Google (unless explicitly marked); try them at your own risk. Also note that many projects here are in the early stages of development and not production-ready.

If you have a project that should be listed here, please send us a pull request to update this page.

Programming Languages

These are projects we know about implementing Protocol Buffers for other programming languages:

• Action Script: http://code.google.com/p/protobuf-actionscript3/
• Action Script: https://code.google.com/p/protoc-gen-as3/
• Action Script: https://github.com/matrix3d/JProtoc
• Action Script: https://github.com/zhongfq/protobuf-as3/
• C: https://github.com/protobuf-c/protobuf-c
• C: http://koti.kapsi.fi/jpa/nanopb/
• C: https://github.com/cloudwu/pbc/
• C: https://github.com/haberman/upb/wiki
• C: https://github.com/squidfunk/protobluff
• C++: https://github.com/google/protobuf (Google-official implementation)
• C/C++: http://spbc.sf.net/
• C#: http://code.google.com/p/protobuf-csharp-port
• C#: http://code.google.com/p/protosharp/
• C#: https://silentorbit.com/protobuf/
• C#/.NET/WCF/VB: http://code.google.com/p/protobuf-net/
• Clojure: http://github.com/ninjudd/clojure-protobuf
• Common Lisp: http://github.com/ndantam/s-protobuf
• Common Lisp: http://github.com/brown/protobuf
• D: https://github.com/msoucy/dproto
• D: http://256.makerslocal.org/wiki/index.php/ProtocolBuffer
• D: https://github.com/opticron/ProtocolBuffer
• Dart: https://github.com/dart-lang/dart-protobuf (runtime) https://github.com/dart-lang/dart-protoc-plugin (code generator)
• Delphi: http://sourceforge.net/projects/protobuf-delphi/
• Delphi: http://fundementals.sourceforge.net/dl.html
• Elixir: https://github.com/jeremyong/exprotoc
• Elm: https://github.com/tiziano88/elm-protobuf
• Erlang: http://github.com/ngerakines/erlang_protobuffs/tree/master
• Erlang: http://piqi.org/
• Erlang: https://code.google.com/p/protoc-gen-erl/
• Erlang: https://github.com/basho/erlang_protobuffs
• Erlang: https://github.com/tomas-abrahamsson/gpb
• Go: https://github.com/golang/protobuf (Google-official implementation)
• Go: https://github.com/akunspy/gopbuf
• Go: https://github.com/gogo/protobuf
• Haskell: http://hackage.haskell.org/package/hprotoc
• Haxe: https://github.com/Atry/protoc-gen-haxe
• Java: https://github.com/google/protobuf (Google-official implementation)
• Java/Android: https://github.com/square/wire
• Java ME: http://code.google.com/p/protobuf-javame/
• Java ME: http://swingme.sourceforge.net/encode.shtml
• Java ME: http://code.google.com/p/protobuf-j2me/
• Javascript: http://code.google.com/p/protobuf-js/
• Javascript: http://github.com/sirikata/protojs
• Javascript: https://github.com/dcodeIO/ProtoBuf.js
• Javascript: http://code.google.com/p/protobuf-for-node/
• Javascript: http://code.google.com/p/protostuff/
• Julia: https://github.com/tanmaykm/ProtoBuf.jl
• Lua: http://code.google.com/p/protoc-gen-lua/
• Lua: http://github.com/indygreg/lua-protobuf
• Lua: https://github.com/Neopallium/lua-pb
• Matlab: http://code.google.com/p/protobuf-matlab/
• Mercury: http://code.google.com/p/protobuf-mercury/
• Objective C: http://code.google.com/p/protobuf-objc/
• Objective C: https://github.com/alexeyxo/protobuf-objc
• OCaml: http://piqi.org/
• Perl: http://groups.google.com/group/protobuf-perl
• Perl: http://search.cpan.org/perldoc?Google::ProtocolBuffers
• Perl: https://metacpan.org/pod/Google::ProtocolBuffers::Dynamic
• Perl/XS: http://code.google.com/p/protobuf-perlxs/
• PHP: http://code.google.com/p/pb4php/
• PHP: https://github.com/allegro/php-protobuf/
• PHP: https://github.com/chobie/php-protocolbuffers
• PHP: http://drslump.github.com/Protobuf-PHP
• Prolog: http://www.swi-prolog.org/pldoc/package/protobufs.html
• Python: https://github.com/google/protobuf (Google-official implementation)
• Python: http://eigenein.github.com/protobuf/
• R: http://cran.r-project.org/package=RProtoBuf
• Ruby: http://code.google.com/p/ruby-protobuf/
• Ruby: http://github.com/mozy/ruby-protocol-buffers
• Ruby: https://github.com/bmizerany/beefcake/tree/master/lib/beefcake
• Ruby: https://github.com/localshred/protobuf
• Rust: https://github.com/stepancheg/rust-protobuf/
• Scala: http://github.com/jeffplaisance/scala-protobuf
• Scala: http://code.google.com/p/protobuf-scala
• Scala: https://github.com/SandroGrzicic/ScalaBuff
• Scala: http://trueaccord.github.io/ScalaPB/
• Swift: https://github.com/alexeyxo/protobuf-swift
• Swift: https://github.com/apple/swift-protobuf/
• Vala: https://launchpad.net/protobuf-vala
• Visual Basic: http://code.google.com/p/protobuf-net/

RPC Implementations

GRPC (http://www.grpc.io/) is Google's RPC implementation for Protocol Buffers. There are other third-party RPC implementations as well. Some of these actually work with Protocol Buffers service definitions (defined using the service keyword in .proto files) while others just use Protocol Buffers message objects.

• https://github.com/grpc/grpc (C++, Node.js, Python, Ruby, Objective-C, PHP, C#, Google-official implementation)
• http://zeroc.com/ice.html (Multiple languages)
• http://code.google.com/p/protobuf-net/ (C#/.NET/WCF/VB)
• https://launchpad.net/txprotobuf/ (Python)
• https://github.com/modeswitch/protobuf-rpc (Python)
• http://code.google.com/p/protobuf-socket-rpc/ (Java, Python)
• http://code.google.com/p/proto-streamer/ (Java)
• http://code.google.com/p/server1/ (C++)
• http://deltavsoft.com/RcfUserGuide/Protobufs (C++)
• http://code.google.com/p/protobuf-mina-rpc/ (Python client, Java server)
• http://code.google.com/p/casocklib/ (C++)
• http://code.google.com/p/cxf-protobuf/ (Java)
• http://code.google.com/p/protobuf-remote/ (C++/C#)
• http://code.google.com/p/protobuf-rpc-pro/ (Java)
• https://code.google.com/p/protorpc/ (Go/C++)
• https://code.google.com/p/eneter-protobuf-serializer/ (Java/.NET)
• http://www.deltavsoft.com/RCFProto.html (C++/Java/Python/C#)
• https://github.com/robbinfan/claire-protorpc (C++)
• https://github.com/BaiduPS/sofa-pbrpc (C++)
• https://github.com/ebencheung/arab (C++)
• http://code.google.com/p/protobuf-csharp-rpc/ (C#)
• https://github.com/thesamet/rpcz (C++/Python, based on ZeroMQ)
• https://github.com/w359405949/libmaid (C++, Python)
• https://github.com/madwyn/libpbrpc (C++)
• https://github.com/SeriousMa/grpc-protobuf-validation (Java)

Other Utilities

There are miscellaneous other things you may find useful as a Protocol Buffers developer.

• Bazel Build
  • rules_closure js-closure
  • rules_go go
  • rules_protobuf java c++ c# go js-closure js-node python ruby
• NetBeans IDE plugin
• Wireshark/Ethereal packet sniffer plugin
• Alternate encodings (JSON, XML, HTML) for Java protobufs
• Another JSON encoder/decoder for Java
• Editor for serialized protobufs
• Intellij IDEA plugin
• TextMate syntax highlighting
• Oracle PL SQL plugin
• Eclipse editor for protobuf (from Google)
• C++ Builder compatible protobuf
• Maven Protobuf Compiler Plugin
  • By xolstice.org (Documentation) (Source)
  • http://igor-petruk.github.com/protobuf-maven-plugin/
  • http://code.google.com/p/maven-protoc-plugin/
  • https://github.com/os72/protoc-jar-maven-plugin
• Documentation generator plugin (Markdown/HTML/DocBook/...)
• DocBook generator for .proto files
• Protobuf for nginx module
• RSpec matchers and Cucumber step defs for testing Protocol Buffers
• Sbt plugin for Protocol Buffers
• Gradle Protobuf Plugin
• Multi-platform executable JAR and Java API for protoc
• Python scripts to convert between Protocol Buffers and JSON
• Visual Studio Language Service support for Protocol Buffers
• C++ library for serialization/de-serialization between Protocol Buffers and JSON.
• ProtoBuf with Java EE7 Expression Language 3.0; pure Java ProtoBuf Parser and Builder.
• Notepad++ Syntax Highlighting for .proto files
• Linter for .proto files
• [Protocol Buffers Dynamic Schema - create protobuf schemas programmatically (Java)] (https://github.com/os72/protobuf-dynamic)
• Make protoc plugins in NodeJS