Check exactly what an API parameter or marketing UTM query string contains without opening that link.
Never paste production passwords, live JWT access tokens or private customer records.
No uploads, cookies, tracking or third-party scripts. Your input stays in browser memory.
Ready. Enter a test value.
A space, percent sign or double-encoded query value can silently break links and webhook parameters. This tool supports component encoding, percent/plus decoding and readable query parameter inspection with duplicate keys preserved.
For a single query value choose Encode; for a percent-encoded value choose Decode. Inspect takes a complete http(s) URL and splits protocol, hostname, path, fragment and every query key/value without contacting the destination.
URLs are treated as text. Inspection is never a network test of the destination, redirect or tracking endpoint. A copied URL may still contain personal information or tokens; avoid sharing such links.
Component encoding escapes reserved separators such as ampersand, equals and question mark, making it suitable for an individual query value.
No. It parses the URL locally without navigating to it or resolving its host.
Yes. The query list retains duplicate keys in order so you can spot accidental repeated parameters.