URI / URL Parser

About this tool

The URI / URL parser splits any URI or URL into the components defined by RFC 3986: the scheme, the authority (userinfo, host and port), the path, the query string, and the fragment. Everything is computed locally in your browser — the URI you paste is never sent to a server.

What it extracts

• Scheme — lowercased (https, mailto, ftp, file, …).
• Userinfo — split into the percent-decoded username and password (the part before the @).
• Host — registered names are lowercased; IPv6 literals are kept in brackets ([2001:db8::1]).
• Port — parsed as a number when present.
• Origin — scheme://authority, when both are present (the value used for same-origin checks).
• Path — shown raw and, when it contains escapes, percent-decoded; also split into individual segments and, when the path points at a file, the filename and its extension.
• Query — the raw query string plus a breakdown into key/value pairs. Pairs are percent-decoded, a + becomes a space, ; is accepted as a separator alongside &, duplicate keys are preserved in order, and a bare key (?flag) is reported with no value.
• Fragment — the part after #, percent-decoded.

Notes

• Relative references (no scheme, e.g. /search?q=rust) are parsed too — the result simply has no scheme, host or port.
• Schemes without an // authority — like mailto:[email protected] — keep the remainder in the path, with no host.
• Surrounding whitespace is trimmed before parsing.

This is the same parser exposed to the gizza chat assistant and the gizza command-line tool, so you get identical results across all three surfaces.

FAQ