Query string parser
Break down a URL or query string into readable key/value pairs.
qbase64langfrpage2🔒 100% client-side — no data sent
URL and query string parser that breaks any URL down into readable key/value pairs, decoding percent-encoded characters. Perfect for debugging links, redirects or UTM parameters, with parsing done 100% in your browser so no URL is ever sent elsewhere.
FAQ
What is a query string in a URL?
It is the part after the question mark (?) that holds parameters as key=value pairs separated by &, for example ?page=2&sort=asc.
How do I extract parameters from a URL?
Paste the full URL and the tool isolates the query string, listing each parameter with its value while automatically decoding URL-encoded characters.
What do %20 or + mean in a URL?
These are encoded characters: %20 (and sometimes +) represent a space. The tool decodes them to show the values as they really are.
What are UTM parameters used for?
Parameters like utm_source, utm_medium and utm_campaign track traffic sources in analytics tools. The parser lists them clearly so you can verify your tracking.