Query String to JSON

Convert URL query strings to JSON objects online. Parse ?key=value&arr[]=1&arr[]=2 query parameters to readable JSON. Free browser-based tool.

Your data never leaves your browser

URL Parser & Inspector

Break down URLs into their components

URL Encoder / Decoder

Encode and decode URL percent-encoding instantly online

JSON Formatter & Beautifier

Format and validate JSON with syntax highlighting online

Frequently Asked Questions

Standard key=value pairs, arrays (key[]=1&key[]=2), nested objects (obj[key]=value) and encoded special characters.