Skip to content

Query String to JSON

Convert a URL query string to JSON and JSON back to a query string. Repeated keys become arrays and values are decoded automatically.

About this tool

Paste a full URL or just the part after the question mark. Each parameter becomes a JSON property, and keys that appear more than once are collected into an array. Edit the JSON to generate a correctly encoded query string.

Runs locally. Your URLs never leave your browser.

More URL tools