Query String to JSON & Back

Convert a URL query string into a readable JSON object, or turn a JSON object into a query string.

100% freeNo sign-upRuns in your browserNo upload · data stays private

📖 Read the full Query String to JSON & Back guide — how it works, examples & FAQ →

How to use this tool

  1. Paste a query string or a JSON object.
  2. Pick the direction.
  3. Copy the result.

Example

a=1&b=2 → { "a": "1", "b": "2" }

Why it's private

This tool runs entirely in your browser using JavaScript. Whatever you paste is processed on your own device — it is never uploaded to a server, logged, or stored. Built by Calabi, which also strips AI metadata and C2PA signals from images and video.

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