About this app
Format JSON is a powerful Safari Extension that automatically detects and beautifully formats raw JSON content right in your browser. Designed with developers in mind, it enhances productivity and readability with an intuitive interface and a robust set of tools to explore and manipulate JSON data effortlessly. Whether you're debugging APIs, inspecting server responses, or reviewing structured data files, Format JSON transforms the way you work with JSON in Safari. Key Features • Automatic Detection & Formatting Seamlessly formats any JSON content you open in Safari—no manual steps needed. • Pretty Printing & Beautification Turns dense JSON into a clean, readable structure with proper indentation and spacing. • Collapsible Nodes Easily navigate complex objects and arrays with collapsible tree structures for better focus. • Line Numbers Stay organized and precise when scanning or editing JSON with optional line numbers. • Light & Dark Themes Choose between light and dark modes to match your system or personal preference. • JSON Validation Instantly checks for valid JSON syntax and alerts you to formatting errors. • Key / Value Search Quickly locate any key or value within your JSON data with built-in search functionality. • Path Highlighting & Copying Click any node to view its full path. Copy paths to clipboard for fast use in development or documentation. • Value Copying Copy individual values with a single click—ideal for testing, sharing, or further processing. Format JSON is essential for any web developer, backend engineer, or data enthusiast who works with JSON regularly. Install now to take control of JSON in Safari with clarity, speed, and precision. Privacy-Friendly & Lightweight Format JSON runs entirely in-browser, with no data tracking or external server communication. Your JSON stays yours.
Latest release
What’s New
Update for age rating
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 8, 2026 · 8:40 AM $0.99
Screenshots
