[ungzd]

There's also nom (https://github.com/Geal/nom) which is similar to Parsec and more designed for parsing text formats but used for binary formats too.

[steveklabnik]

Serde is short for "serialize/deserialize", nom is about parsing. Similar, but slightly different things.

[erickt]

Serde creator here. Steve's right, serde is fundamentally a generic protocol that implements serialization. I didn't use nom for serde_json (because it didn't exist at the time) but it's definitely possible to use nom and other parser generators to implement the serde protocol.

[zsiciarz]

It's coming to 24 days of Rust as well :-)