A JSON viewer renders JSON data as an interactive, collapsible tree so you can navigate complex nested objects and arrays at a glance. Instead of scrolling through raw text, you expand only the branches you need, click nodes to copy their paths, and search for specific keys or values instantly.
JSON Input
Paste JSON on the left and click "View JSON Tree"
How to Use the JSON Viewer
The JSON Viewer transforms raw JSON text into an interactive collapsible tree so you can understand the structure of any JSON document at a glance. Whether you are debugging an API response, exploring a config file, or validating data shape, the tree view makes nested structures immediately readable.
Step 1: Input Your JSON
Paste your JSON directly into the text area on the left. You can also click the Upload button to load a .json file from your computer without any server upload — the file is read locally in your browser. Click Sample to load an example JSON with users, products, and nested objects to explore the tool.
Step 2: View the Tree
Click View JSON Tree to render the JSON as a collapsible tree. Each object and array shows a collapse/expand toggle (▶ / ▼). Values are color-coded by type: strings in green, numbers in orange, booleans in purple, null in gray.
Step 3: Navigate and Explore
Click any node to see its full JSON path in the path bar — for example, $.users[0].address.city. Click Copy to copy the path to your clipboard. Use Expand All or Collapse All to manage visibility at once.
Step 4: Search and Filter
Type in the search box to highlight all matching keys or values in the tree. Non-matching nodes are dimmed so matching entries stand out. This is especially useful for finding a specific field in a deeply nested API response with dozens of keys.
Step 5: Use Raw and Stats Views
Switch to the Raw tab for a syntax-highlighted, formatted version of the JSON. Switch to the Stats tab for a breakdown of key counts, nesting depth, and type distribution — useful for understanding the overall shape of a large dataset before processing it.
FAQ
Is this JSON viewer free to use?
Yes, the JSON Viewer is completely free with no usage limits and no account required. You can paste or upload any JSON file and explore it as an interactive tree as many times as you need.
Is my JSON data safe and private?
Absolutely. All processing happens in your browser using client-side JavaScript. Your JSON is never sent to any server, never stored, and never logged. It is safe to use with sensitive API responses, config files, and credentials.
What is the difference between JSON Viewer and JSON Formatter?
The JSON Formatter pretty-prints JSON with indentation and validates syntax. The JSON Viewer goes further by rendering the JSON as a collapsible tree structure you can interactively explore — expanding nodes, clicking to see JSON paths, searching for keys or values, and viewing type breakdowns.
How do I view a JSON file from my computer?
Click the 'Upload JSON' button to select a .json file from your computer, or drag and drop the file onto the upload zone. The file is read locally in your browser and displayed instantly as a tree view without any server upload.
How do I find a specific key or value in a large JSON?
Use the Search/Filter field above the tree view. Type any key name or value, and matching nodes are highlighted in yellow. Non-matching branches are dimmed so you can quickly locate specific data even in deeply nested structures.
What does clicking a node in the tree view do?
Clicking a node copies its JSON path to the path display bar at the top of the tree. For example, clicking a name field inside an array would show the path as $.users[0].name. This helps you reference specific values in your code.
What file sizes does the JSON viewer support?
The viewer handles JSON files up to several megabytes efficiently. For very large files (10MB+), rendering the full tree may be slower, but the Raw view tab shows formatted JSON instantly. Performance depends on your browser and device.