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Query String Parser & Builder

Parse URL query strings and build new ones. Edit parameters visually.

Parse or Build
Paste a URL or query string to parse, or add parameters below to build.

Query String Parser & Builder

Parse, edit, and build URL query strings (also called URL parameters or search params). Query strings appear after the ? in URLs (e.g., ?page=1&sort=date). This tool extracts parameters, lets you add or remove them, and rebuilds the URL. Useful for debugging APIs, building links, or understanding URL structure.

How to Parse URL Parameters

  1. Paste a full URL or just the query string (e.g., ?key=value&foo=bar).
  2. Click "Parse" to extract parameters into editable key-value pairs.
  3. Add, remove, or edit parameters. The output updates as you type. Copy the final URL when done.

When to Use

Debug API URLs, build pagination links, add tracking parameters, test webhooks with different params, or understand how URL encoding works. Handles special characters and encoded values. All in your browser.