Jx9是一个可嵌入的脚本引擎，基于JSON实现了图灵完备(Turing complete)的编程语言。
Jx9 是那些需要流行和高效率脚本支持应用程序（比如：游戏、数据库系统，文本编辑器，网络应用程序等）的理想库。 Jx9 借用来Lua编程的概念，使用一种简洁并且类似于C，JavaScript 和 JSON 的语法。拥有一个丰富的标准库，内置303个函数和139个常量。Jx9还原生支持多线程。Jx9具有以下特性：
Easy to bind C/C++ foreign functions as well foreign constants.
Turing complete programming language based on JSON.
Modern, clean and easy to use C/C++ API.
Clean and familiar syntax similar to C, JavaScript and JSON.
Thread safe and full reentrant.
Dynamically typed programming language.
Highly efficient and platform independent Bytecode compiler.
Function overloading like C++.
Built-in HTTP Request Parser.
Native support for Anonymous functions.
Amalgamation: All C source code for Jx9 are combined into a single source file.
Jx9 is an Open Source product