Write JSON

Build clean structures fast!

$7.99 · Designed for iPad

Build valid JSON fast with a visual Builder, Editor tools, templates, and AI assist. Format, validate, patch, and export with confidence. Write JSON helps you build clean, valid JSON without frustration—whether you’re brand new or you work with APIs every day. Build (Visual Builder) Create JSON objects and arrays using a simple, structured Builder. • Quick Add common field types (text, number, boolean, null, object, array) • Edit nested objects/arrays with a clean recursive editor • Duplicate, reorder, and remove fields safely • Undo/Redo for confident editing Editor (Power tools) Prefer working directly with raw JSON? The Editor makes it fast and safe. • Instant validation with clear feedback • Format (pretty print) and Minify in one tap • Copy and apply valid JSON back to the Builder AI Assist (for non-coders) Describe what you want in plain English and let AI generate a usable starting structure. • Great for beginners who don’t know JSON syntax • Works as a “first draft” you can refine in the Builder Export & Share When it’s ready, export clean JSON for your project. • Copy/share output for APIs, configs, automations, and docs Whether you’re making an API request body, a configuration file, or structured data for an app, Write JSON helps you move faster—with fewer mistakes. Apple Privacy Policy: https://www.apple.com/legal/privacy/en-ww/ Privacy Policy: https://www.freeprivacypolicy.com/live/7325d9e5-8666-4e68-9d1d-619607f7d3d3

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The developer, Matthew Elliott, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Provider
      • Matthew Elliott
    • Size
      • 6.8 MB
    • Category
      • Developer Tools
    • Compatibility
      Requires iOS 26.1 or later.
      • iPhone
        Requires iOS 26.1 or later.
      • iPad
        Requires iPadOS 26.1 or later.
      • Mac
        Requires macOS 26.1 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 26.1 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 Matthew Elliott
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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