Query String Parser
Parse, sort, inspect, and rebuild URL query strings locally in your browser.
Paste a full query string or the query part of a URL to inspect its parameters, repeated keys, blank values, and encoded characters. The parser and builder run locally in your browser.
How it works
Parse query string turns the input into decoded key/value rows while preserving repeated keys and blank values. You can paste either ?a=1&b=2 or a full URL that contains a query string; a full URL without a query returns no rows.
Build query string rebuilds an encoded query string from the current input parameters. Use the output format selector when you want row text, JSON, or only the rebuilt query string.
The Decode + as a space option follows common form-style query behavior. Disable it when plus signs should stay literal text.
This tool does not fetch URLs or validate server routing. It only parses and rebuilds text in the browser. Avoid pasting private tokens unless you trust the current device and page context.
