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

🚄 FASTJSON2 is a Java JSON library with excellent performance.

simplejson is a simple, fast, extensible JSON encoder/decoder for Python

Alba is a JSON serializer for Ruby.

Shale is a Ruby object mapper and serializer for JSON, YAML, TOML, CSV and XML. It allows you to parse JSON, YAML, TOML, CSV and XML data and convert it into Ruby data structures, as well as serialize data structures into JSON, YAML, TOML, CSV or XML.

A CLI tool to help generate dart classes from json returned from API

Elixir library to render Json with relationship

C JSON parser (both, SAX-like & full DOM)

An F# JSON parser & serializer

Fast lightweight and compact JSON serializer for .NET. Distributed as .NET library and C# source code.

Automatically convert JSON to dart objects in runtime without code generation.

mutils is fast serializer for Ruby Objects

An implementation of the JSON data format in Erlang.

Serialize any Ruby object as readable JSON

Single file Json parser and serializer

A library for Classic ASP(VBScript) to make your code more like VB.NET. It includes a typed ArrayList with Linq-like methods, O/R mapper, JSON-serializer and etc.

Multi-format schema-based serializer, deserializer and validator. Charged URI syntax. URI Charge Notation

Minimalistic, zero-dependency implementations of some popular stuff, just for fun

Lightweight json library for C++

Bash Json Creator