String ParserQuery
Break down URL query strings into their individual key-value parameters for easy inspection and debugging. Query strings like ?utm_source=email&utm_campaign=promo&user_id=12345&lang=en can be difficult to read in their raw form, especially in long tracking URLs or complex API requests. This tool parses the query string and presents each parameter on its own line, making it easy to identify all parameters, their values, and any encoding issues.
Use Query Tool in Seconds
Query String Parser
Interactive text engine
How To Use Query String Parser
- Paste the query string or full URL containing query parameters into the input field.
- The tool identifies the query string portion (everything after the ? in the URL).
- Each key-value pair separated by & is extracted and decoded.
- The parsed parameters are displayed as individual labeled rows — key: value.
- Review the parameter list to verify values, check for expected parameters, or identify unexpected entries.
Frequently Asked Questions
Can this parse URL query parameters?
Yes. Paste a full URL or just the query string portion (starting with ? or without it), and the tool extracts each parameter name and value pair. URL-encoded values are automatically decoded — %20 becomes a space, %40 becomes @, etc. The output presents each parameter on its own line for clear readability.
What is a query string?
A query string is the part of a URL that comes after the question mark and contains key-value parameter pairs separated by ampersands. For example, in https://example.com/search?q=cats&sort=recent&page=2, the query string is q=cats&sort=recent&page=2, containing three parameters: q with value 'cats', sort with value 'recent', and page with value '2'. Query strings are used to pass data to web applications via GET requests.
How is this useful for debugging marketing tracking URLs?
Marketing tracking URLs often have long query strings with UTM parameters and encoded tracking values that are hard to read in a browser address bar. Pasting a tracking URL into this tool instantly reveals all UTM parameters (source, medium, campaign, content, term), custom tracking IDs, affiliate codes, and other parameters. This helps marketers verify that tracking is configured correctly before launching campaigns.
Can this handle multiple values for the same parameter key?
Some URLs pass the same parameter key multiple times — for example, ?tag=news&tag=tech&tag=science to pass multiple values for a 'tag' filter. The parser should detect and display these repeated keys with their respective values. This pattern is common in filtering interfaces, multi-select form submissions, and APIs that accept array-style query parameters.
What is the maximum query string length I can parse?
There is no strict character limit in this tool for parsing query strings. However, browsers and web servers impose their own limits — typically between 2,000 and 8,000 characters for URLs depending on the platform. Very long query strings from base64-encoded values or tracking systems can be pasted without issues. The tool processes the full string regardless of length.
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