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Fast JSON viewer for Chrome: tree/raw view, search, copy path/value. JsonKing is a fast JSON viewer and formatter built for developers, QA engineers, API testers, and anyone who works with JSON every day. It turns raw JSON pages into a clean, interactive viewer inside Chrome, so you can inspect large payloads without switching tools or copying data into external websites. Key features: - Tree view and raw view for JSON responses - Format and minify JSON, JSON5, JSONL, and stringified JSON - Powerful search by key, value, path, or regular expression - Expand all and collapse all for large structures - Copy values, paths, and extracted results quickly - Edit JSON with syntax highlighting, line numbers, auto indentation, and draft validation - Compare changes with JSON diff editing - Save viewer sessions and restore local history - Open payloads from the popup or inspect raw JSON pages directly in the current tab JsonKing is designed to keep your workflow fast and local. JSON content is processed in your browser, and local history is stored only on your device to help you restore recent work. Why install JsonKing: - Read raw API responses more comfortably - Debug nested payloads faster - Reformat messy JSON in one click - Search and validate payloads without leaving Chrome - Edit and compare JSON with a lightweight IDE-style experience JsonKing does not require sign-in and does not send your JSON content to a remote server.
Mar 30, 2026
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