msgspec / msgspec

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

msgpack / msgpack-python

MessagePack serializer implementation for Python msgpack.org[Python]

Fatal1ty / mashumaro

High-performance serialization without replacing your data model

yukinarit / pyserde

Yet another serialization library on top of dataclasses, inspired by serde-rs.