Free Online Query String Parser
This free query string parser runs entirely in your browser — no signup and no file uploads. Parse URL query strings into key/value pairs or JSON, and rebuild query strings safely.
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Input
Output
{}How to use this free tool
- Paste a URL or query string.
- Parse.
- Edit pairs if needed.
- Copy JSON or rebuilt query.
Examples
UTM inspect
Input: ?utm_source=x&id=1
Output: {utm_source: x, id: 1}
Related searches
People looking for a query string parser often also search for url query parser, parse query params, qs parser, search params tool, query param parser, and url search params. This page covers that search cluster without duplicate URLs.
FAQ
Does it decode percent-encoding?
Yes—values are decoded for readability.
Duplicate keys?
Shown as multiple values or arrays depending on mode.
Related to UTM Builder?
UTM Builder creates campaign params; this inspects any query string.
How do I use a free query string parser?
This free query string parser runs entirely in your browser — no signup and no file uploads. Use the free tool above for instant results — no signup, browser-based, and private.
What is a query string parser?
This free query string parser runs entirely in your browser — no signup and no file uploads. Use the free tool above for instant results — no signup, browser-based, and private.
Is there a free online tool for query string parser?
This free query string parser runs entirely in your browser — no signup and no file uploads. Use the free tool above for instant results — no signup, browser-based, and private.
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