URL Parser

Break down URL into protocol, host, path, query, hash.

Developer

The URL Parser breaks down any URL into its individual components — protocol, host, port, pathname, query parameters, and hash fragment — giving you a clear, structured view of how the URL is constructed. This is invaluable for debugging broken links, understanding API endpoint structures, documenting URL patterns, and verifying that query parameters are correctly formed. The tool uses the browser's built-in URL API for reliable, standards-compliant parsing. Query parameters are displayed as a clean key-value table for easy reading. All parsing runs entirely in your browser — no data is sent to any server, keeping your URLs private.

About URL Parser

Every URL is composed of several distinct parts: the protocol (http, https, ftp), the host (domain name or IP address), an optional port, the pathname (the path to the resource), the query string (search parameters after the ?), and the hash (fragment identifier after the #). Understanding these components is crucial for web development, API integration, and SEO.

This tool parses any valid URL using the browser's native URL API and displays each component clearly. Query parameters are extracted and shown as individual key-value pairs in a table, making it easy to inspect complex URLs with multiple parameters. Since the parsing uses your browser's built-in API, it is fully standards-compliant and handles edge cases correctly.

How to Use URL Parser

  1. Paste or type a full URL into the input field (it must start with a scheme, e.g., https://).
  2. Click Parse URL to break down the URL into its components.
  3. Review the breakdown showing protocol, host, port, pathname, query string, and hash.
  4. Query parameters (if any) are displayed as a key-value table below the breakdown.

Key Features

  • Complete breakdown — Shows protocol, host, port, pathname, query, and hash
  • Query parameter table — Displays parameters as readable key-value pairs
  • Standards-compliant — Uses the browser's native URL API for accurate parsing
  • Edge case handling — Correctly handles encoded characters, default ports, and complex paths
  • Client-side privacy — No server communication; your URLs stay in your browser

When to Use This Tool

  • Debugging broken links or incorrect URL construction in your application
  • Inspecting API endpoint URLs to verify query parameter structure
  • Documenting URL patterns for APIs or routing configurations
  • Checking how redirects or tracking parameters modify a URL
  • Learning about URL structure and its components

Technical Details

The parser uses the browser's native new URL() constructor, which implements the WHATWG URL Standard. This means it handles scheme normalization, percent-encoded characters, IDN domains, IPv6 addresses, and default port omission correctly. Query parameters are extracted using the URLSearchParams API, which properly handles multiple values for the same key and encoded special characters. Only URLs with a valid scheme (protocol) are accepted — relative paths and incomplete URLs will produce an error. All processing runs in JavaScript within your browser.

Conclusion

URL Parser is a developer-friendly tool for dissecting any URL into its constituent parts. With standards-compliant parsing, a clean query parameter table, and complete browser-side privacy, it simplifies URL debugging and documentation. For encoding special characters in URLs, use the URL Encoder.

Frequently Asked Questions

What URL parts are shown?
Protocol (http/https), host (domain), port, pathname, search (query string), and hash (fragment). Query parameters are also listed as individual key-value pairs.
Is my URL sent to a server?
No. Parsing uses your browser's built-in URL API. Your input never leaves your device.
What if the URL is invalid?
The tool will show an error message. Only valid URLs with a protocol (e.g., https://example.com) can be parsed. Relative paths without a scheme are not supported.
Can it handle URLs with encoded characters?
Yes. The browser's URL API correctly handles percent-encoded characters in all URL components. Query parameter values are decoded for display in the key-value table.