Free
$0
- All five utilities
- Unlimited basic use
- Local browser processing
API utilities for developers and IT professionals
Free Online JSON Formatter
Format, validate, and minify JSON online for free. Your payload stays in your browser and is never uploaded to our servers.
Most processing happens locally in your browser.
GET /v1/users/42
{
"id": 42,
"name": "Arnaldo",
"plan": "pro",
"status": "active"
}Workspace
Five tools, one interface
JSON Formatter
Your account
Save workspaces across devices
Simple pricing
Start free. Upgrade when you need more.
Pro
$5/month
- Saved workspaces
- Request history roadmap
- Environment variables roadmap
- Priority feature requests
Learn more
How to use Free Online JSON Formatter
Paste JSON into the editor and choose Format to add readable indentation or Minify to create a compact payload. Invalid JSON produces a clear parsing message so you can correct it quickly.
Formatting happens locally in your browser, making this utility useful for API responses, configuration files, webhook payloads, and troubleshooting work.
Is the JSON formatter free?
Yes. Basic formatting, validation, minification, and copying are free to use.
Is my JSON uploaded?
No. JSON formatting and minification run locally in your browser.