qs is a query string parser and stringifier with support for nesting and arrays. It allows you to parse URL query strings into JavaScript objects and conversely, stringify JavaScript objects into URL query strings. It supports advanced use cases like nested objects, arrays, and delimiters customization, making it ideal for complex data structures in URLs. Widely adopted and well-maintained, qs is a reliable choice for handling query parameters in your Node.js or browser-based JavaScript applications.
The qs package has had an irregular release frequency since its inception. Releases were most frequent in 2011 and 2014. There were periods of no releases, followed by bursts of activity. The last release was in January 2025. Overall, the release frequency has slowed significantly in recent years, with many months and whole years seeing no new versions published.
The qs npm package experienced significant download growth from February 2024 to August 2025. Downloads surged from 14 million to over 300 million in March 2024 and remained high throughout the observed period, peaking in July 2025. August 2025 data is incomplete, showing a dip but indicating continued strong usage.
