A structured data transfer protocol. It is simpler, more compact and faster than XML, because binary data is optimized for the minimum size of the message.
|Latest stable version||Protobuf 3|
|Used by||Twitter, Google, Fflick|
Protocol Buffers are similar to the Apache Thrift (used by Facebook) or Microsoft Bond protocols, offering as well a concrete RPC protocol stack to use for defined services called gRPC.