Free URL Parser & Query String Viewer
Paste any URL and see every part broken out · protocol, host, path, and each query parameter decoded into a readable table.
Frequently asked
Why do query parameters matter for security?
They're user input. Parameters echoed into the page unsanitized are the classic reflected-XSS vector, and tokens or PII in query strings leak into server logs, analytics, and Referer headers.
What's the difference between the fragment and the query?
The query (?a=b) is sent to the server; the fragment (#section) never leaves the browser. That's why OAuth implicit flows put tokens in fragments · and why servers can't log them.
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