Query String Parser

Parse URL query strings into key-value pairs.

foo: bar, dup
baz: qux

Introduction

Query String Parser is easier when you have a focused tool. Query String Parser provides a browser-based workflow for work through "query string parser" requirements. Instead of stitching together scripts and one-off templates, you can run the core action here, copy the output, and move on. Use the How to Use section to get a draft in minutes, then explore related links to complete adjacent steps. URL utilities help parse, encode, and build links for web apps and marketing workflows.

Explore more in Tools, All Tools, or the URL Tools category.

How to use

  • Open Query String Parser on this page.
  • Enter your input values.
  • Click generate (or run the action).
  • Copy or download the result.

Features

  • Fast Query String Parser results in your browser
  • Clear output you can copy into code or docs
  • Designed as a practical free developer tool
  • Works well alongside other DevToolDock formatters and validators

Use cases

  • Decode/encode strings while debugging redirects and query parameters.
  • Validate transport-safe text before storing or transmitting data.
  • Inspect tokens and payload fragments during authentication troubleshooting.
  • Use Query String Parser for "query string parser" tasks when copying data between systems.

Example

Input

Sample input (paste your real data in the tool)

Output

Processed output appears here after you run the tool

FAQ

What is Query String Parser?
Query String Parser is a free online tool designed to help you complete "query string parser" workflows with clean, copy-friendly output.
How do I use Query String Parser?
Enter your input, run the action, and copy the output into your project or documentation.
Is Query String Parser free?
Yes. You can use it directly in your browser and copy or download the result.
Why use Query String Parser instead of writing it manually?
It saves time, standardizes structure, and reduces errors by giving you a consistent baseline that you can refine for your specific requirements.

What is Query String Parser?

Paste a query string (with or without leading ?) to see parsed key-value pairs. Duplicate keys are shown as arrays.

FAQ

Is this tool free to use?

Yes. This tool is available to use for free.

Does the tool run in the browser?

Yes. The logic runs client-side in your browser.

Is my data uploaded to a server?

No. Your input stays in your browser and is not uploaded by this tool.

Can I use this tool for large files?

It depends on your device and browser. Very large inputs may be slow; for huge files, use a local CLI tool.

Example usage

Input

?foo=bar&baz=qux

Output

foo: bar, baz: qux

How to use

  1. Paste a query string (e.g. from a URL)
  2. View decoded keys and values

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