MessagePack is an extremely efficient object serialization library. It's like JSON, but very fast and small.
MessagePack implementation for C and C++ / msgpack.org[C/C++]
@msgpack/msgpack - MessagePack for JavaScript / msgpack.org[ECMA-262/JavaScript/TypeScript]
MessagePack serializer implementation for Java / msgpack.org[Java]
MessagePack serializer implementation for Python msgpack.org[Python]
idiomatic codec and rpc lib for msgpack, cbor, json, etc. msgpack.org[Go]
A msgpack v5 implementation for node.js, with extension points / msgpack.org[Node]
MessagePack implementation for Common Language Infrastructure / msgpack.org[C#]
msgpack.org[PHP]
msgpack-rpc for Jubatus
MessagePack implementation for Node.js
MessagePack serializer implementation for Objective-C / msgpack.org[Objective-C]
MessagePack-RPC is an inter-process messaging library that uses MessagePack for object serialization.
General ruby templating with json, bson, xml, plist and msgpack support
msgpack-rpc + α for C++ language
rpclib is a modern C++ msgpack-RPC server and client library
msgpack-rpc + α for JavaScript language