Free · Private · In-Browser

JSON To Query String

Turn a simple JSON object into encoded query parameters.

Output
 

Flatten JSON into query params

Turning a small JSON object into a URL query string — for a request, a tracking link, or a deep link — means encoding each key and value correctly. This converter flattens a simple object into properly encoded query parameters.

Doing the encoding by hand invites broken URLs when values contain spaces or special characters. Paste a JSON object and get a ready-to-use query string, so you can build request URLs and links without the escaping headaches.

Encoded correctly, locally

It URL-encodes each key and value so a small object becomes a valid query string for a request or link. The conversion runs in your browser.

Frequently asked questions

How does it convert JSON to a query string?

Each top-level key becomes a parameter and values are URL-encoded. Arrays become repeated keys, like tag=a&tag=b.

Does it support nested objects?

No. Flatten nested objects first; nested values are not expanded into bracket syntax.

Do I need the question mark?

The output has no leading ?. Add it when you attach the string to a URL.

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