JSON Formatter & Validator

Format, validate, and beautify JSON data online. Minify or pretty-print with customizable indentation and syntax highlighting.

100% PrivateInstantAny Device

JSON Input

Options

Indentation

Sort Keys

Output

How to Format JSON

Beautify and validate JSON data instantly.

Paste JSON

Paste your raw or minified JSON.

Click Format

Beautify with proper indentation.

Review Output

See clean, readable JSON.

Copy Result

Copy formatted JSON.

Why Use Our JSON Formatter?

Format, validate, and beautify JSON data.

Instant Formatting

Format JSON in one click.

100% Private

No data leaves your browser.

Syntax Validation

Catch JSON errors instantly.

Any Device

Works everywhere.

Easy Export

Copy formatted output.

No Sign-Up

No account needed.

Common Use Cases

See how JSON formatting is used in real scenarios.

API Response

Input

{"name":"John","age":30}

Output

{
  "name": "John",
  "age": 30
}

Config Files

Input

{"debug":true,"port":3000}

Output

{
  "debug": true,
  "port": 3000
}

Database Records

Input

{"id":1,"status":"active"}

Output

{
  "id": 1,
  "status": "active"
}

Log Parsing

Input

{"level":"error","msg":"fail"}

Output

{
  "level": "error",
  "msg": "fail"
}

Frequently Asked Questions

It parses your JSON input, validates its syntax, and re-formats it with configurable indentation (2 spaces, 4 spaces, or tabs). It can also minify JSON by removing all unnecessary whitespace, and sort keys alphabetically.

The tool catches the parse error and displays a descriptive error message pointing to the issue in your JSON. You can use the Validate button to quickly check syntax without formatting.

Yes. Toggle the 'Sort Keys' option to alphabetically sort all keys in your JSON objects at every nesting level. This is useful for comparing two JSON documents.

The formatted output uses color-coded highlighting: green for keys, green for strings, amber for numbers, blue for booleans, and gray for null values — making it easier to scan large documents.

Absolutely. All formatting and validation happens locally in your browser — no JSON data is sent to any server.

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