ijl / orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

msgspec / msgspec

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

lupingQAQ / JGD

Autonomous agent that mines Java deserialization gadget chains from any JAR directory. Static bytecode analysis + dynamic JVM probes + dual-model adversarial auditing → weaponized PoC. Solving the last mile.

marshmallow-code / marshmallow

A lightweight library for converting complex objects to and from simple Python datatypes.

jsonpickle / jsonpickle

Python library for serializing any arbitrary object graph into JSON. It can take almost any Python object and turn the object into JSON. Additionally, it can reconstitute the object back into Python.

python-attrs / cattrs

Composable custom class converters for attrs, dataclasses and friends.

Fatal1ty / mashumaro

High-performance serialization without replacing your data model

reagento / adaptix

An extremely flexible and configurable data model conversion library.