Common Use Cases
Validate request/response bodies, inspect nested API data, and minify payloads for storage.
Free JSON Formatter and Validator Online
Use this JSON formatter tool to prettify, validate, minify, and inspect JSON payloads in tree or grid view. It helps developers debug API responses faster and catch malformed JSON before shipping.
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How to Use
Paste JSON, click format or validate, then switch to tree or grid view for easier debugging.
Why It Helps
Readable structure and instant validation reduce parsing errors and save time during integration work.
Example JSON Formatting Workflow
Input (minified):
{"user":{"id":42,"name":"Alex"},"active":true,"roles":["admin","editor"]}Output (formatted):
{
"user": {
"id": 42,
"name": "Alex"
},
"active": true,
"roles": ["admin", "editor"]
}