Example
a=1
b=hello world
URL Parameter Parser
Parse any URL and decode its query string parameters instantly in your browser. Free online URL parameter parser — extract and decode key-value pairs.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- URL — enter a value. A typical URL would be https://example.com/page?name=John%20Doe&page=2&tag=a%26b.
- Review your results — the key output is highlighted, with supporting figures below.
Loading calculator…
Results
Decoded parameters (one per line)
| Detail | Value |
|---|---|
| Parameter count | |
| Path | |
| Origin |
What is this calculator for?
Separate a URL into its parts and decode all query-string parameters into readable key-value pairs.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- URL — enter a value. A typical URL would be https://example.com/page?name=John%20Doe&page=2&tag=a%26b.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- URL
- a value · required
About This Calculator
A query string passes data as key=value pairs after the ? in a URL, often percent-encoded (e.g. %20 for a space, %26 for &).
This parser decodes every parameter and lists them one per line, along with the path and origin so you can see exactly what the URL carries.
Parsing runs entirely in your browser.
Worked Examples
Frequently Asked Questions
Why do some values look encoded?
Values with spaces or special characters are percent-encoded in the raw URL. This tool decodes them so you see the real text (e.g. %20 becomes a space).
What if there are duplicate keys?
All values are shown as separate lines even when the key repeats. Most servers keep the first value, but the parser lists every one so nothing is hidden.