Protocol Buffers: Google's Data Interchange Format

Protocol Buffers: Google's Data Interchange Format

Protocol Buffers: Google's Data Interchange Format. Open sourced today. Highly efficient binary protocol for storing and transmitting structured data between C++, Java and Python. Uses a .proto file describing the data structure which is compiled to classes in those languages for serializing and deserializing. 3-10 times smaller and 20-100 times faster than XML.

protobuf - Google Code
Google Open Source Blog: Protocol Buffers: Google's Data Interchange Format