Query String ↔ JSON Converter — URL Parameter Parser

Convert URL query strings to JSON and back. Supports nested structures, arrays, live preview, and shareable links. All client-side.

Query String
Preview URL

Powerful Query String ↔ JSON Conversion

Whether you're working with REST APIs, building frontend forms, or handling URL parameters, this tool helps you convert query strings into structured JSON — and back again. Instantly format, copy, or export results.

Advanced Format Support

  • Nested Parameters: user[name]=Zonayed { "user": { "name": "Zonayed" } }
  • Arrays: tags=one&tags=two { "tags": ["one", "two"] }
  • URL Encoding: Automatically decodes/encodes characters safely
  • Two-Way Editing: Edit either side and get live updates

Live Preview + Shareable URLs

See a real-time example URL as you type. Want to share a query string? Just append ?q=your-query-string to this page and it’ll be preloaded when opened.

Why Use This Tool?

  • ✅ Simplifies debugging complex query strings
  • ✅ Useful for testing front-end form submissions
  • ✅ Great for URL parameter generation in documentation
  • ✅ Offline-ready and privacy-friendly

Frequently Asked Questions (FAQs)

Why Use ToolMateX

Tired of bloated tool websites with 10 ads per click? This platform is built for speed, simplicity, and reliability. Whether you're debugging JSON or testing colors, we’ve got your back.

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Free to Use, Forever

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Works Offline (Most of Them)
Works Offline (Most of Them)

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Made by a 1-Person Team
Made by a 1-Person Team

Made by someone who actually uses these tools daily. It’s fast, clean, and made with your workflow in mind, not corporate KPIs.

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