JSON Viewer

Beautiful JSON viewer with Tree, Schema, YAML, and Raw views.

Fast & beautiful JSON viewer with Tree, Grid, Editor, YAML views, and DevTools integration. Handles large files instantly. Transform your raw JSON into a beautiful, interactive, and readable format. JSON Viewer is a powerful developer tool designed for performance and usability, allowing you to visualize, edit, and analyze JSON data directly in your browser. High Performance We built this extension to handle massive files without freezing. * Instant Loading: Opens 5MB+ JSON files in milliseconds. * Smart Rendering: Uses lazy loading and virtualization to render only what you see. * Low Memory Usage: Optimized to use up to 90% less memory than standard viewers. Multiple Viewing Modes * Tree View: Navigate nested JSON with collapsible nodes and syntax highlighting. * Grid View: Perfect for arrays—view your data in a clean, sortable table format. * Editor View: Edit JSON directly with syntax validation and formatting. Fix invalid JSON on the fly. * YAML View: Instantly convert and view your JSON as YAML. * Schema View: Visualize the structure and types of your JSON data. Powerful Tools * DevTools Panel: Inspect network requests and JSON responses in a dedicated "JSON Viewer" tab in Chrome DevTools. * Smart Search: Deep search through keys and values with regex support. * Theme Support: Automatically switches between Light and Dark modes based on your system preference. * Utilities: One-click Copy, Save to File, and Format/Minify options. Privacy First JSON Viewer works entirely offline. Your data is processed locally in your browser and is never sent to any server.