Query String to JSON Converter

Runs in your browser — nothing is uploaded

Query string

JSON

About this tool

Converts a URL query string to a JSON object and back. Works in your browser — nothing is sent to our servers.

Repeated keys (a=1&a=2) and array-style keys (a[]=1&a[]=2) become a JSON array. Going the other way, only flat values and arrays of flat values are supported — nested objects aren't (query strings don't have a single standard way to represent them).

Frequently asked questions

What is Query String to JSON Converter?

Convert a URL query string to a JSON object and back. It is one of the Encoders & Decoders tools on MyCodeTips.

How do I use Query String to JSON Converter?

Open the tool, enter or paste your input, and the result appears right away. Use the Copy button to copy it.

Is Query String to JSON Converter free to use?

Yes. It is free to use and does not need an account.

Is my data safe with Query String to JSON Converter?

Yes. It runs entirely in your browser, so what you enter is never uploaded to our servers.

Can I share my result?

Yes. Use the share buttons below the tool to post a link or copy a link to the tool page.