Query String Parser
Break a URL query string into its individual parameters, decoded and listed.
Reading the parameters
A query string crams a URL's parameters into one line of keys, values, ampersands and percent-encoding that is hard to read. This parses it into a clean list of key-value pairs, decoding the values, so you can see exactly which parameters a link carries and what each is set to.
Paste a query string or full URL and its parameters are listed.
Where parsing helps
Laying the parameters out is the fast way to answer common questions: which tracking tags a marketing link carries, what values a form submitted, why a link behaves unexpectedly, or whether a parameter appears more than once. Decoding matters here — percent-encoded values are unreadable until decoded, and that is often where a surprising value hides. It is the reverse of a query-string builder: the builder assembles parameters into a string, this takes a string apart so you can inspect it.
Questions & answers
What does it show me?
Each query parameter as a decoded key-value pair, so you can read exactly what a URL is carrying.
Why decode the values?
Percent-encoded values are unreadable until decoded, and that is often where an unexpected value is hiding.
Is my URL uploaded?
No. The parsing happens in your browser.