- A rich set of Lisp-oriented data types, being able to represent things like dotted lists, objects and structures, rationals, symbols, and the like.
- A very compact representation, which can be smaller than MessagePack in some cases (particularly representing sequences of multi-byte numbers, or anything involving richer data types).
- Full reference support including circular structures, multiple references to the same object, and "remote" references for custom handling.
CONSPACK was inspired by MessagePack, and by the general lack of features among prominent serial/wire formats. Specifically, it focuses on the following: