Query String to JSON Converter - Free, Instant, In Your Browser
Paste a query string like a=1&b=2 to get an equivalent JSON object.
How to use QUERYSTRING → JSON
- 1Paste your text or data into the input box above.
- 2QUERYSTRING → JSON runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
Does this handle repeated keys?
Yes - if a key appears more than once, its values are collected into an array.
Do I need to include the leading question mark?
No, it is optional - both ?a=1&b=2 and a=1&b=2 work.