Developer

URL Query String Parser

Parse a URL or raw query string into decoded key-value pairs, including repeated parameter names.

✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Developer note. Repeated parameter names are returned as arrays. Decoding follows browser URLSearchParams rules.

Why use this url query string parser?

Parse a URL or raw query string into decoded key-value pairs, including repeated parameter names. It is designed as a focused browser utility so you can test a scenario or transform data without creating an account.

Example

Paste a small representative sample into URL Query String Parser, review the generated result, then copy it into your development or data workflow after checking the output.

Important note

Generated developer output should be reviewed before production use. Keep secrets, credentials and sensitive production data out of browser tools unless you control the environment and understand the risk.

How to use it

Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.

Frequently asked questions

Is URL Query String Parser free?

Yes. The core tool is free to use without creating an account.

Do I need an account to use URL Query String Parser?

No. You can use the core Toolbox workflow without signing up.

Does URL Query String Parser work on mobile?

Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.