JSONPretty

Beautiful JSON formatting in your browser. Syntax highlighting, collapsible sections, search.

JSONPretty automatically formats raw JSON in your browser with syntax highlighting and collapsible sections. Developers and technical professionals frequently open API endpoints, webhook payloads, and JSON files in the browser. Chrome displays these as a wall of unformatted text. JSONPretty replaces that with a clean, interactive, syntax-highlighted view. How it works: JSONPretty activates automatically when your browser displays a JSON response. No clicking required. The raw JSON is replaced with a formatted view that is easy to read and navigate. Features: Syntax highlighting: strings, numbers, booleans, null, and keys each get a distinct color Collapsible objects and arrays. Click any bracket to collapse. Collapsed sections show a summary like "{...} 5 properties" Line numbers for easy reference Click any value to copy it to clipboard Click any key to copy the full path (e.g., data.users[0].name) Search bar to find and highlight specific keys or values Toggle between formatted and raw view Handles large JSON files (10MB+) without freezing