Does this tool visit or fetch the URL entered?
Never. Only the string itself is parsed locally in JavaScript; no HTTP request or DNS lookup is performed.
Text
Break a URL query string into structured parameters.
Add an input and run this tool to see the output.
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Query String Parser Developer Guide
100% Client-Side & PrivateBreak a query string into keys and values when debugging links, filters, redirects, or API request parameters.
Key capabilities
- Deconstructs URL query parameter strings into structured, readable key-value tables and JSON
- Decodes percent-encoded query parameter keys and values automatically
- Properly groups repeated parameter keys into arrays
- Analyzes full URLs or isolated query strings without making network requests
Common use cases
- Inspecting complex UTM campaign parameters and tracking query strings
- Debugging OAuth redirect URLs, state parameters, and authorization code flows
- Extracting search filters and pagination parameters from logged backend request URLs
How to use Query String Parser
- Paste a full URL or just the query string portion (after the `?`)
- Examine the parsed parameters in a clean table and JSON view
- Copy individual values or the entire parsed JSON object