ijl / orjson

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

marshmallow-code / marshmallow

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

msgspec / msgspec

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

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

yukinarit / pyserde

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

protectai / modelscan

Protection against Model Serialization Attacks

toon-format / toon-python

🐍 Community-driven Python implementation of TOON

reagento / adaptix

An extremely flexible and configurable data model conversion library.

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.