URL Query String Parser and Builder

Parse URL query strings into readable key/value data and rebuild them when testing links, tracking parameters, filters, redirects, signed URLs, or app state in the browser. It is useful for debugging marketing URLs, API requests, and web-app routing behavior. ToolMill gives you a quick private workspace in the browser instead of making you paste real customer URLs into a remote tool.

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Query string or full URL

Parsed parameters

Examples

Simple key-value query string

Input

name=John&age=30&city=New%20York

Output

{"name":"John","age":"30","city":"New York"}

Repeated parameter keys as array values

Input

tag=js&tag=web&tag=tools

Output

{"tag":["js","web","tools"]}

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