JSON to Query String

Convert JSON objects to URL query strings.

Drag & drop a JSON file here, or click to browse

File is read locally — nothing is uploaded to any server

Features

  • JSON File Upload: Upload a .json file directly — read locally in your browser, nothing is sent to any server.
  • Drag & Drop: Drag and drop a JSON file onto the drop zone for quick loading.
  • URL Encoding: Automatically encodes keys and values for safe URL usage.
  • Nested Objects: Flattens nested objects into bracket notation (e.g., filter[category]=1).
  • Array Support: Handles arrays (e.g., ids[]=1&ids[]=2).

How to Use

  • Upload a JSON file using the file picker, or drag & drop a file onto the drop zone.
  • Alternatively, paste a JSON object into the input box.
  • Converts to a standard HTTP Query String.
  • Useful for debugging API calls or generating links.