Query String Parser

Parse query parameters from a full URL or raw query string. See decoded values and a JSON representation of all parameters.

  • Runs entirely in your browser
  • No data stored or sent to a server
  • Free forever — no signup
  • Instant conversion

Input and Output

Use the interactive encoder and decoder on this page to process your text.

Learn more about query strings

How to Parse URL Query Strings

Query String Parsing

Input Formats

Paste a full URL, a query string with leading ?, or raw key=value pairs. The tool extracts parameters, decodes values, and outputs JSON.

Frequently asked questions

Are duplicate keys handled?

Yes. Duplicate keys are shown as arrays in the JSON output.