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URL Query Parser

Parse a URL query string into key-value pairs.

JWT & API ToolsBrowser-only • PrivateFree

URL / Query String

Parsed Parameters

Output will appear here...

Privacy First: All processing happens locally in your browser. Your data never leaves your device and is never uploaded to any server.

About URL Query Parser

The URL Query Parser splits a URL's query string into a clean list of key-value pairs, decoding each parameter so you can read exactly what a link or request is passing. It's ideal for debugging tracking links, API calls, and redirects. Parsing runs locally in your browser with nothing uploaded. To build a query string from scratch, use the URL Query Builder, and to decode encoded values the URL Decoder.

How to Use

1Open URL Query Parser and paste or type your data into the input area.
2Adjust any available options to match the result you want.
3Your output is generated instantly — no button-clicking required for most tools.
4Use the Copy or Download button to save your result.

Common Use Cases

Inspecting JWT claims while debugging authentication
Converting cURL commands into fetch or Axios code
Building and parsing query strings and tracking URLs
Looking up HTTP status codes during API development

Frequently Asked Questions

Does it decode encoded parameter values?

Yes. Percent-encoded values are decoded as they're parsed, so you see the human-readable value of each parameter rather than sequences like %20 or %3D.

Can it handle repeated parameters?

Yes. When the same key appears more than once, each occurrence is listed, so you can see all the values a query string passes for that parameter.

Is URL Query Parser free to use?

Yes. URL Query Parser is completely free with no sign-up, no subscription, and no usage limits. Every tool on CodeUtilityKit is free forever.

Is my data safe when I use URL Query Parser?

Absolutely. URL Query Parser runs entirely in your browser. Your input is processed locally with JavaScript and is never sent to, stored on, or logged by any server — so it is safe even for private or sensitive data.