JSON Viewer
View, validate, search, and explore JSON data as a collapsible tree.
JSON Viewer
Paste JSON and inspect it as a collapsible tree. The viewer validates JSON, formats it, and helps search keys and values in nested API responses.
Useful for
- Exploring API responses
- Finding keys inside nested JSON
- Checking object, array, key, and depth counts
How to use JSON Viewer
The JSON viewer displays JSON as a collapsible tree. It is useful when a formatted JSON file is still too large to scan line by line.
Developers often use this page when they need json viewer, json previewer, json viewer online, and json viewer beautify.
Privacy and data handling
This tool is designed to run in your browser for normal use, so your input does not need to be sent to a server.
- Input and output stay on the page while you work.
- Copy buttons use your browser clipboard permission when available.
- Avoid pasting private production data on shared or untrusted devices.
Examples
Inspect nested JSON
Input
{"user":{"name":"Ada","roles":["admin"]}}Output
user
name: Ada
roles
0: adminTree views make nested API responses easier to scan.
Steps
- 1Paste JSON into the viewer.
- 2Expand and collapse objects or arrays.
- 3Search for keys or values when you need a specific part.
Common use cases
- Explore a large API response.
- Check nested config data.
- Find a field in a JSON object quickly.
Practical tips
- Validate the JSON first if the tree does not load.
- Collapse noisy branches to focus on the fields you need.
- For very large data, use a dedicated JSON viewer or editor.
FAQ
Why use a JSON tree viewer?
A tree view lets you collapse nested data and inspect one branch at a time, which is easier than reading a long text block.
Can I search inside JSON?
Yes. Searching helps find keys and values without manually expanding every branch.