FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

A high-performance 100% compatible drop-in replacement of "encoding/json"

A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.

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

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

🚄 FASTJSON2 is a Java JSON library with excellent performance.

A handy swift json-object serialization/deserialization library

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

The fastest JSON library in C

Python Data Structures for Humans™.

Rust reflection, serialization, deserialization, pretty printing, etc. — the last proc macro you should need

JexBoss: Jboss (and Java Deserialization Vulnerabilities) verify and EXploitation Tool

Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.

🎷No ceremony, just code. Blazing fast, typesafe binary serialization.

Map nested JSON structures onto PHP classes

jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

Rust high performance xml reader and writer

Declarative binary reading and writing: bit-level, symmetric, serialization/deserialization

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.

Module that adds support for serialization/deserialization of Kotlin (http://kotlinlang.org) classes and data classes.