The jsonrepair library is designed to repair invalid JSON documents by fixing common issues such as missing quotes, commas, and brackets, as well as handling special characters and formats. It supports both function and streaming API usage, making it suitable for various applications, including Node.js and command-line operations. The library can also process large documents efficiently and is available for installation via npm.

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.