JSON Editor
Format, edit, validate, and search JSON with syntax highlighting and real-time error detection.
JSON Viewer, Formatter & Explorer Online
JSONex
Free online JSON viewer, formatter, and explorer for developers. Format, validate, search, and visualize JSON with tree and graph views, upload or download files, and work across multiple tabs—all in one place.
JSON Viewer, Formatter & Visualization Features
JSON Tree View
Navigate deeply nested JSON with an expandable tree view for faster inspection and debugging.
JSON Graph Explorer
Visualize relationships between JSON objects and arrays using an interactive graph view.
Developer Tools
Upload and download JSON files, work across multiple tabs, and inspect large JSON documents with ease.
Complete Online JSON Viewer, Formatter & Explorer
JSONex is an all-in-one JSON toolkit for developers working with APIs, logs, configuration files, and structured data. Format and validate JSON instantly, inspect data in an expandable tree view, visualize relationships with an interactive graph, and edit content with real-time validation.
Whether you're debugging API responses, exploring complex nested objects, or formatting large JSON files, JSONex brings everything together in one place. Search instantly, upload and download JSON files, work across multiple tabs, and switch seamlessly between code, tree, and graph views—without relying on multiple JSON tools.