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Query String to JSON

Use this free online Query String to JSON to convert a URL query string into JSON. It works instantly in your browser, and your data never leaves your device.

About the Query String to JSON

Turn ?a=1&b=2 style query strings into a JSON object.

How to use the Query String to JSON

  1. Paste your input into the box above, upload a file, or click Sample to try an example.
  2. Pick any options you need. The Query String to JSON processes your input instantly as you type.
  3. Click Copy to copy the output or Download to save it as a file.

Features

  • Free with no signup and no daily limits
  • Private: runs entirely in your browser
  • Works on mobile, tablet and desktop
  • Upload files and download results
  • Live results as you type, with clear error messages
  • Clean, fast interface with no popups

Frequently asked questions

Is the Query String to JSON free to use?

Yes. The Query String to JSON is completely free with no signup, no limits on normal use and no watermark.

Is my data safe?

Yes. Everything is processed by JavaScript inside your own browser. Your text is never uploaded to our server or stored anywhere.

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