Query String Parser

Query string parser helps you parse URL query strings into readable key-value pairs. This free online tool is ideal for developers who need to inspect, debug, or extract URL parameters from web requests and API calls. Paste a query string or full URL, and the parser will instantly display the parsed parameters.

Input (URL or Query String)
Key Value
Results will appear here...

1 Parsing Features

Structure Handling

Automatically handles arrays (e.g. tags[]=a&tags[]=b) and simple key-value pairs.

Decoding

Percent-encoded values (e.g. %20 for space) are automatically decoded.

2 Example Output

Parsed JSON

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{
  "q": "developer tools",
  "category": "web",
  "tags": [
    "react",
    "astro"
  ],
  "sort": "newest",
  "page": "1"
}

3 Common Use Cases

  • Debugging API requests to ensure parameters are correct.
  • Analyzing marketing campaign URLs (UTM parameters).
  • Extracting search queries from browser history.

Related Tools

Need to analyze the full URL? Use our URL Parser.

Need to decode URL parameters? Use our URL Decoder.

Need to encode URL parameters? Use our URL Encoder.

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