JSON Query Language is a lightweight and expandable library for querying JSON data, featuring over 50 functions and operators. It supports both text and JSON query formats, allows the creation of custom functions and operators, and provides error handling with detailed insights. Users can install it via npm for use in JavaScript and Python applications.

The article introduces JSON Query, a versatile and expandable query language designed for working with JSON data. It provides a playground, documentation, and function references, showcasing various examples of querying, filtering, sorting, and transforming JSON objects and arrays. Key functionalities include the ability to chain methods and utilize operators for diverse data manipulation tasks.