Parse / Build Query String

Privacy friendly: This tool runs locally in your browser. Your input is not uploaded, stored, logged, or shared.

Query string parser and builder

Use this query string parser to convert URL query parameters into JSON, or build a query string from JSON values. It is useful for debugging links, API requests, tracking parameters, search filters, and browser routing state.

Query strings and JSON values are processed locally in your browser, so pasted URLs and parameters stay private.