01
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JSON Formatter
JSON Formatter Online
Free online JSON formatter. Beautify, pretty-print, and minify JSON in your browser with real-time validation.
The problem
Minified API payloads and log dumps are unreadable. Manual indentation is error-prone and slow when you need to share or debug quickly.
Use cases
Pretty-print API responses
Format a production payload before pasting into a ticket or PR.
Minify for transport
Strip whitespace before embedding JSON in configs or CLI args.
Clean exports
Normalize indentation across team-shared sample files.
A JSON formatter takes raw or minified JSON and reformats it with readable indentation and consistent spacing. BracketView's online JSON formatter lets you beautify (pretty-print) or minify JSON in one click — directly in your browser with no installation. Paste your payload, click Format, and get clean, readable output instantly. The real-time validator highlights syntax errors as you type, so you can fix issues before exporting. Formatting and validation run in your browser. Optional AI and snapshots use the server when you choose them.
Format JSON nowLast parse duration: 4ms
Code examples
Before (minified)
{"user":{"id":1,"name":"Ada"}}After (formatted)
{
"user": {
"id": 1,
"name": "Ada"
}
}Key features
- One-click beautify with consistent 2-space indentation
- Minify JSON for production payloads
- Real-time syntax validation as you type
- Syntax highlighting and line numbers
- Upload .json files up to 5 MB (50 MB on Pro)
- Copy formatted output in one click
- Works in any modern browser — no install
How to
How to Format JSON Online with BracketView
Beautify or minify JSON in three steps using BracketView's free online formatter.
02
Paste your JSON
Paste raw or minified JSON into the editor. Errors are highlighted instantly.
03
Click Format
Click Format to beautify with readable indentation, or Minify for compact output.
Frequently asked questions
What is a JSON formatter?
A JSON formatter (also called a JSON beautifier or pretty-printer) reformats JSON with readable indentation and line breaks. BracketView formats JSON online for free in your browser.
How do I pretty print JSON online?
Paste your JSON into BracketView and click Format. The formatter adds indentation and spacing automatically — no command-line tools required.
Can I minify JSON with BracketView?
Yes. BracketView can both beautify and minify JSON. Minify removes whitespace for smaller production payloads.
Is the JSON formatter free?
Yes. BracketView's JSON formatter is free with no signup required. Core formatting runs entirely in your browser.
Does formatting send my data to a server?
No. BracketView formats JSON locally in your browser. Your data stays on your device.
Privacy and security
Core viewing, formatting, validation, JSONPath, and jq run in your browser. Optional AI features, encrypted snapshots, and Webhook Tester send or store data when you use them. Review the privacy policy before pasting sensitive payloads into optional cloud features.
Related tools
Explore more JSON tools in the BracketView workspace.
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