Format JSON for API Logs
Pretty-print and validate JSON logs for faster debugging and reviews.
Try it now
Try it now
Open JSON Formatter with a ready-to-run example.
When you need this
- You need to inspect minified JSON logs quickly.
- You want to validate API responses before sharing them.
- You are preparing JSON for tickets or incident reports.
How to do it with Daily Developer Tools
- Paste the JSON into the JSON Formatter.
- Choose indentation and optional key sorting.
- Copy or download the formatted output.
Tips / common pitfalls
- Use minify to compress output for logging or transport.
- Sort keys for stable diffs during reviews.
- Fix trailing commas or missing quotes to resolve errors.
Examples & test data
Minified response payload
Input example
{"id":42,"status":"ok","duration_ms":153,"tags":["api","v2"],"meta":{"region":"us-east-1","attempt":1}}
Expected output
{
"id": 42,
"status": "ok",
"duration_ms": 153,
"tags": [
"api",
"v2"
],
"meta": {
"region": "us-east-1",
"attempt": 1
}
}
Array of events
Input example
[{"event":"login","user":"alex","ts":"2026-01-15T10:22:08Z"},{"event":"logout","user":"alex","ts":"2026-01-15T11:03:14Z"}]
Expected output
[
{
"event": "login",
"user": "alex",
"ts": "2026-01-15T10:22:08Z"
},
{
"event": "logout",
"user": "alex",
"ts": "2026-01-15T11:03:14Z"
}
]
FAQ
Can the formatter validate JSON?
Yes. It highlights syntax errors with line and column details.
Can I minify JSON again?
Yes. Use the Minify button for compact output.
Do you store my logs?
No. It runs locally in your browser. No uploads.
Can I sort keys alphabetically?
Yes. Enable Sort keys for stable diffing.
Privacy-first: runs locally in your browser. No uploads.