Practical usage guide
What this tool does
URL Parser turns an absolute URL, or a relative reference combined with a base URL, into a structured JSON view using the browser URL API. It exposes normalized components such as the resolved href, origin, protocol, credentials, host, port, pathname, query parameters, and fragment without sending a request to the destination.
Parsing answers how the browser interprets URL syntax; it does not prove that a server exists or that a link is trustworthy. Relative paths are resolved against the selected base URL, repeated query keys are represented as arrays instead of silently overwriting earlier values, and the indentation option controls only the readability of the JSON result.
Quick start
Paste an absolute or relative URL
An absolute value such as https://example.com/path can be parsed directly. For ../assets/file.json or ?page=2, provide the intended absolute base URL so resolution matches the page or application you are debugging.
Choose the output detail and query order
Enable Include Empty URL Components when you want unused fields such as username, password, port, search, or hash shown as empty strings. Empty query values are always preserved; Sort Query provides stable key order for review.
Review the normalized result
Compare href, origin, hostname, pathname, search, hash, and the query object. Choose the JSON indentation that is easiest to read or copy into an issue, test, or documentation note.
Remove secrets before sharing
URLs can contain username and password fields or sensitive query values. Redact credentials, tokens, signed parameters, email addresses, and private identifiers before copying the output elsewhere.
Common use cases
Debug redirects and callback URLs
Separate an OAuth callback, payment return URL, or nested redirect into components and verify which query values and fragment data the browser will expose.
Resolve relative application links
Combine a relative asset, route, or API reference with a known base URL to see the absolute URL produced after dot-segment and path resolution, without contacting the host.
Audit query parameter structure
Inspect empty parameters, repeated filters, campaign tags, pagination values, and encoded redirect targets without collapsing duplicate keys into one value.
Prepare stable URL fixtures
Use sorted query output and consistent indentation when documenting parser behavior or creating readable expected values for browser and API tests.
Limitations and important notes
Parsing performs no network request
The tool does not resolve DNS, follow redirects, check TLS, test availability, fetch metadata, or confirm that a route exists. It only applies URL parsing rules in the browser.
The URL API may normalize spelling
The resolved href can differ from the original text because the platform may normalize hostnames, default ports, escaped characters, path segments, and relative references. Keep the raw input for byte-for-byte or forensic comparison.
Relative references depend on the base URL
A relative path has no single absolute meaning. A missing, invalid, or unintended base can produce a valid result that points to the wrong origin or directory.
User information and query values may be sensitive
A URL can embed a username, password, access token, signed query, or personal identifier. Local parsing avoids an upload, but clipboard history, screenshots, logs, and shared output can still expose those values.
Input length is limited
The parser accepts up to 16,384 input characters per run. Extremely long signed URLs, nested redirect parameters, or bulk URL lists should be handled with purpose-built code instead of this single-URL workspace.