1. PiqiPiqi – universal schema language: JSON, XML, Protocol Buffers data validation and conversion
2. Piqi ErlangProtocol Buffers, JSON, XML data serialization system for Erlang
3. Erl aliasesDefine (shorter) aliases for Erlang record and module names
4. piqi-rpcRPC-over-HTTP system for Erlang supporting JSON, XML and Protocol Buffers
5. piqi-ocamlProtocol Buffers, JSON, XML data serialization system for OCaml
6. erlsonErlang Simple Object Notation - dynamic name-value dictionary data type and syntax for Erlang