Protocol Buffers - Google's data interchange format

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

FlatBuffers: Memory Efficient Serialization Library

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

Protocol Buffers for JavaScript & TypeScript.

Cross-browser storage for all use cases, used across the web.

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

Java binary serialization and cloning: fast, efficient, automatic

A C++11 library for serialization

Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]

A handy swift json-object serialization/deserialization library

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

Kotlin multiplatform / multi-format serialization

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

🚄 FASTJSON2 is a Java JSON library with excellent performance.

YamlDotNet is a .NET library for YAML

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

C++ Reflection Library

💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.

Hprose is a cross-language RPC. This project is Hprose 3.0 for PHP