URL Parser & Builder
Parse a URL into its components or assemble a URL from individual parts.
About This Tool
The URL Parser & Builder is a free browser-based tool that helps developers dissect, analyze, and construct URLs. Whether you are debugging API endpoints, building redirect URLs, or just trying to understand how a complex URL is structured, this tool breaks every URL into its fundamental parts: protocol, authentication (username and password), hostname, port, pathname, query parameters, and hash fragment.
In Parse mode you paste any URL and instantly see each component extracted into its own field along with a key-value table for every query parameter. In Build mode you fill in each component individually and watch the URL assemble in real time. You can add, remove, and reorder query parameters with a visual editor.
All processing happens entirely in your browser using the standard
URL Web API. No data is transmitted to any server, no logging,
and no third-party analytics on your input, making it safe for URLs
that contain authentication tokens, internal hostnames, or other
sensitive information.
The tool complements our URL Encode/Decode utility which focuses on percent-encoding, and pairs well with the HTTP Status Codes reference when you are debugging web requests. If you need to decode tokens in your URLs, check out the Base64 Encode/Decode tool.
How to Use
- Choose Parse mode to analyze an existing URL, or Build mode to construct a new one.
- In Parse mode, paste or type a full URL into the input field (must include a protocol such as
https://). - The URL is automatically broken down into Protocol, Username, Password, Hostname, Port, Pathname, Hash, and Query Parameters.
- Click the Copy button next to any individual component to copy it to your clipboard.
- In Build mode, fill in each component field and add query parameters with the Add button.
- Reorder query parameters using the up/down arrows, or remove them with the X button.
- The assembled URL appears live at the top of the page. Click Copy URL to copy the full result.
- Use the keyboard shortcut Ctrl+Shift+C to quickly copy the current URL.
Popular URL Parsing Examples
FAQ
Is my data safe when using this tool?
Yes. All URL parsing and building happens entirely in your browser using the built-in URL Web API. No data is ever sent to a server. You can safely use this tool with URLs containing API keys, authentication tokens, or internal hostnames.
What URL formats are supported?
The tool supports any URL that the browser's built-in URL API can parse, including http://, https://, ftp://, and custom protocol schemes. URLs must include a protocol prefix to be parsed correctly.
Can I parse URLs with authentication (user:pass)?
Yes. If the URL contains a username and password in the format https://user:pass@host.com, both are extracted and displayed in separate fields. In Build mode you can set username and password independently.
How are query parameters handled?
Query parameters are parsed into a key-value table. In Parse mode the table is read-only. In Build mode you can add, edit, remove, and reorder parameters. The URL is assembled using the URLSearchParams API which automatically handles encoding.
Does the tool handle URL encoding and decoding?
The tool displays both the raw URL and a decoded version when percent-encoded characters are present. For full URL encoding and decoding functionality, use our dedicated URL Encode/Decode tool.
What happens with relative URLs?
Relative URLs (without a protocol) cannot be parsed by the browser URL API on their own. You need to provide a full URL including the protocol. In Build mode, the protocol defaults to https: if not specified.
Can I use this with localhost and IP addresses?
Yes. The tool works with localhost, IPv4 addresses (like 192.168.1.1), IPv6 addresses (like [::1]), and any valid hostname. Port numbers are also extracted and displayed separately.
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