About this tool
Resolve URL references with an explicit base and privacy policy, then inspect the browser's normalized interpretation without requesting the destination.
URL Parser helps developers, marketers, SEOs, and support teams break a copied link into its protocol, origin, host, path, hash, and query parameters. It is useful when a long campaign link, redirect destination, callback URL, or support ticket needs to be inspected without writing a script.
- Uses the browser WHATWG URL implementation with explicit auto, absolute-only, and base-resolution modes.
- Preserves query entry order and raw encoding evidence while flagging duplicate keys, empty entries, five standard UTM keys, credentials, and IDN punycode.
- Redacts likely URL passwords and token-style query or fragment values by default, blocks stale export, and downloads a versioned JSON report.
How to use URL Parser
Paste a full URL or a bare domain, then review the parsed URL parts, query parameter table, UTM count, duplicate key warnings, and copy-ready JSON summary. Use the parameter table to catch empty values, repeated keys, tracking mistakes, or fragments that should not be sent to a server.
When this tool is useful
- When checking UTM links before sharing a campaign URL.
- When debugging redirect destinations, callback URLs, or support tickets with long query strings.
- When confirming whether duplicate parameters, empty values, or fragments are causing unexpected behavior.
Practical tips
- Check duplicate keys before sending links to analytics or ad platforms.
- Confirm whether the hash fragment is expected because it is not sent to servers in normal HTTP requests.
- Use URL Encoder when a parameter value needs escaping after you inspect it.
Examples you can test
Load an example, compare the result with the expected output, then replace it with your own input.
Inspect a campaign link
Example input
https://example.com/page?utm_source=newsletter&utm_medium=email&utm_campaign=launch
Expected output
Protocol, host, path, and three UTM query rows
Campaign QA is easier when each UTM value is visible as a separate row.
Find duplicate query keys
Example input
https://example.com/search?q=json&q=schema#results
Expected output
Duplicate q parameter flagged
Duplicate keys can be valid, but they often reveal copied link mistakes or ambiguous tracking behavior.
Validation checklist
- Check whether the protocol and hostname match the intended destination.
- Review duplicate query keys before sharing analytics or redirect links.
- Confirm UTM source, medium, campaign, content, and term values are spelled consistently.
- Check whether hash fragments are expected because they are client-side only.
- Use encoded values when copying parameters into systems that expect percent-escaped input.