URL Parser guide
Break an absolute URL or resolved relative reference into its standard components and decoded query parameters.
What this tool does
URL Parser uses the browser's built-in URL implementation to validate and normalize an address. It reports the resolved URL, origin, protocol, hostname, explicit port, pathname, query string, fragment, username, and whether a password was present. Password text is deliberately not displayed in the result.
The tool also groups decoded query parameters. Repeated keys remain grouped with all their values instead of being silently overwritten. This is useful when debugging pagination, filters, callback URLs, campaign links, API requests, and routing behavior.
An absolute URL can be parsed directly. A relative reference such as ../images/logo.png?size=2 requires a base URL because its final address depends on the current directory, origin, and protocol. The browser resolves dot segments and applies standard URL normalization rules.
How to use it
- Paste the URL or relative reference to inspect.
- If the input is relative, enter an absolute base URL.
- Select Parse URL.
- Review each component and the decoded parameter groups.
- Copy the structured JSON report when you need it in documentation or debugging notes.
Do not paste live reset links, signed download URLs, access tokens, or private credentials into tools you do not trust. ToolSeta performs this parsing locally, but browser extensions, screen sharing, and clipboard history can still expose visible secrets.
For a focused view of repeated parameters and normalized query output, use the Query String Parser. To prepare one value or path segment for insertion into a URL, use the URL Encoder & Decoder instead of encoding the complete address.
Benefits
- Uses the standards-based browser URL parser
- Resolves relative references against an optional base
- Preserves repeated query-parameter values
- Hides an embedded password while reporting its presence
- Keeps the entered URL on the device
Interpretation and limitations
Parsing confirms that the browser can construct a URL; it does not prove that the destination exists, is safe, or will accept a request. No network request, DNS lookup, redirect follow, malware scan, or server check is performed. Percent-encoded query values are decoded by URLSearchParams, while the pathname remains in the browser's normalized URL representation.
The reported origin may be null for schemes that do not use a normal web origin. A blank port means the URL did not include an explicit port, not that networking happens without a port. Fragments are processed by the client and are normally not sent in an HTTP request.