About URL Parser & Query Inspector
Parsing runs through the browser's own URL implementation, so the breakdown matches what a browser will genuinely do with the link rather than approximating it. Parameters are shown decoded, which is how a value that was double-encoded upstream gives itself away.
Parse any URL to see every query-string parameter decoded in a table, along with the protocol, host, port, path and hash. It is built on the browser's own URL engine, so it matches real behaviour.
A URL packs a lot of structure into one string. This parser breaks any URL into its parts — protocol, username and password, hostname, port, path, fragment and origin — and lists every query-string parameter in a decoded table so you can see exactly what a link carries. Paste a URL with or without a scheme; if you omit it, https:// is assumed.
It is built for the URLs that go wrong: a redirect chain that quietly drops a parameter, an analytics tag with a duplicated key, an OAuth callback whose state value arrived double-encoded. Listing every parameter separately is usually enough to show which one is malformed.