express-query-parser

An Express.js middleware that automatically parses and transforms query string values from strings to native JavaScript types: null, undefined, boolean, and number. Version 1.3.3 (May 2022) adds empty string conversion. It recursively handles nested objects and arrays. Compared to alternatives like qs (used by Express by default), this package provides a focused, zero-dependency solution with TypeScript type declarations and an ESBuild-based bundle, updated periodically since 2018.