JSON MASTER - Offline JSON Beautifier & Viewer

JSON MASTER - Offline JSON Beautifier & Viewer

Transform and visualize your JSON data with this powerful offline tool. No data transmission, no tracking - your data never leaves your device.

Key Features

Format and beautify JSON with automatic syntax highlighting Multiple tabs for working with several JSON files simultaneously Light and dark themes with smooth transitions Code editor features including line numbers and jump-to-line navigation Real-time search with highlighted matches and keyboard navigation Easy file saving and clipboard operations Support for 9 interface languages

How to Use

1. Paste your JSON data into the input area
2. Watch it instantly format with proper indentation and highlighting
3. Navigate through the formatted JSON using line numbers
4. Use the search feature to find specific keys or values
5. Copy the formatted JSON or save it to a file
6. Switch between tabs to work with multiple JSON structures
7. Use keyboard shortcuts Alt+1-4 to switch tabs and Ctrl+Tab to cycle through them

All processing happens locally in your browser - work confidently with sensitive data knowing it stays on your device.