JSON Formatter
Validate, format, minify, copy, and inspect JSON as a path-based tree.
Bytes
265
Keys
10
Depth
3
Input
Output
Valid JSON
Valid JSON. Formatted output is ready.
Formatted JSON
{
"project": "ravensmove",
"environment": "production",
"features": {
"jsonFormatter": true,
"treeViewer": true,
"localOnly": true
},
"limits": {
"maxDepth": 5,
"indentOptions": [
2,
4
]
},
"updated": "2026-05-07"
}What is a JSON Formatter?
A JSON formatter converts compact JSON into readable, consistently indented JSON. It is useful when an API response, configuration file, webhook payload, or log line is technically valid but difficult to scan.
This JSON formatter also works as a JSON validator and JSON viewer. It parses the pasted value, reports syntax errors, creates formatted or minified output, and shows the parsed data as a tree of paths, types, and values.
How JSON Validation Works
JSON validation checks whether the text follows the JSON grammar. Property names and string values must use double quotes, objects and arrays must close correctly, and values must be one of object, array, string, number, boolean, or null.
When the parser rejects the input, the tool shows the error message and a line and column when the browser exposes a parse position. Once the JSON is valid, you can switch between formatted output and the tree viewer.
For pattern matching against logs or extracted text, use the Regex Tester.
JSON Formatter Use Cases
- Format API responses before reading or sharing them.
- Minify JSON before pasting it into an environment variable or config field.
- Validate webhook payloads, logs, and sample request bodies.
- Inspect nested paths inside a JSON object or array.