Frequently Asked Questions
How should I enter pairs?
Enter one key=value pair per line in the input box.
Does it URL-encode values?
Yes. Values are encoded to produce a valid query string.
Is this processed locally?
Yes. Query string generation happens in your browser.
Example input/output
Input: page: 1 / filter: hello world
Output: page=1&filter=hello%20world
How it works
This tool uses JavaScript's URLSearchParams to append your key-value pairs and then calls toString() to produce a URL-encoded query string. Processing runs in your browser.
Common use cases
- Build query strings for API test requests without manual URL encoding
- Construct complex query parameters for REST API exploration
- Generate properly encoded query strings for documentation examples