js-yaml

A high-performance YAML 1.2 parser and serializer for JavaScript environments.

js-yaml is the industry standard for handling YAML in Node.js and browser applications. It provides a full implementation of the YAML 1.2 specification, supporting critical features like custom tags, anchors, and complex object types. Developers use its load() and dump() methods to convert data structures with speed and precision (benchmarks show it outperforms competitors in parsing efficiency). It is a core dependency for major tools like ESLint and remains the most trusted solution for managing configuration files and data serialization in the JavaScript ecosystem.

https://github.com/nodeca/js-yaml