Query String Parser | Extract & Decode URL Parameters
Parse URL query strings into key-value pairs. Extract and decode query parameters from URLs for debugging, testing, and API development.
How to Use This Tool
- 1
Paste a query string or full URL.
- 2
See all parameters extracted as key-value pairs.
- 3
Values are automatically URL-decoded.
- 4
Copy the formatted output.
- 5
Perfect for API testing and debugging.
Use Cases & Examples
API Development
Debug API requests by extracting and viewing query parameters.
Web Analytics
Parse tracking parameters from marketing URLs (UTM codes, etc.).
Testing
Verify query parameters in automated tests and QA.
SEO Analysis
Analyze URL parameters for canonical URLs and duplicate content.
How Query String Parsing Works
Uses URLSearchParams API for accurate parsing.
Automatically decodes URL-encoded characters (%20, %3D, etc.).
Handles multiple values for the same key.
Supports both ?key=value and key=value formats.
Preserves empty values and handles edge cases.
Frequently Asked Questions
Q.What is a query string?
A. A query string is the part of a URL after the '?' that contains key-value pairs separated by '&', like ?key1=value1&key2=value2.
Q.Does it decode URL-encoded values?
A. Yes, all parameter values are automatically URL-decoded for readability.
Q.Can I parse query strings without the '?'?
A. Yes, the tool works with or without the leading '?' character.
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