Query String Parser

Extract, parse, and format URL query parameters. Build URLs from parameters. Pure client-side.

Key Value Actions
Total params: 0
Has dupes: No
QueryString length: 0

About this Query String Parser

Query strings carry structured parameters after ? in a URL. Parsing them into key/value pairs helps debug tracking links, API calls, and routing issues.

This tool also helps rebuild query strings from parameters so you can edit one field without hand-mangling encodings.

How to use this tool

  1. Paste a full URL or just the query portion.
  2. Inspect parsed keys and values.
  3. Edit and rebuild when crafting test URLs.

Common use cases

FAQ

Are arrays supported?

Repeated keys may appear as multiple entries depending on parser rules—check your framework’s convention.

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