URL Parser vs Query String Parser
Separate full URL structure parsing from query-parameter parsing so path, fragment, and encoding issues are not mixed together.
URL Parser checks the whole structure
Parse https://user:pass@example.com/a%2Fb?tag=one&tag=two#top as a whole first. Check credentials and keep serialized /a%2Fb separate from decoded /a/b; decoding must not erase the fact that the slash was originally data inside one path segment.
Query String Parser checks parameter details
For ?tag=one&tag=two&empty=&q=a%2Bb+c, parameter parsing preserves two tag rows and the blank value; q decodes to a+b c because %2B is plus and + is space. Special names such as __proto__ remain ordinary grouped JSON keys.
Know what neither parser proves
A full URL parser normalizes syntax but does not request the address or prove reachability, ownership, or safety. A Query String parser returns no parameters for mailto:ops@example.com or urn:example:item because neither has a query, and reports malformed percent sequences instead of guessing.
FAQ
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Which tool should I use for text like a=1&b=2?
Use the Query String Parser. That text is not a complete URL, so the URL Parser asks for a scheme.
What if a complete URL has no query parameters?
The URL Parser can still show scheme, host, path, and fragment. The Query String Parser will not treat the path as parameters.
Do either of these tools check whether the target link is reachable?
No. Both tools process text structure only. They do not request the target address or provide reachability or reputation judgments.
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