JSON Tools

JSON Validator

Validate your JSON data and find syntax errors with detailed error messages including line numbers and character positions.

JSON Input

1 lines

Enter JSON to validate

Missing comma

Add comma between properties: "a": 1, "b": 2

Trailing comma

Remove comma before closing bracket: {"a": 1}

Single quotes

Use double quotes: "key" not 'key'

Unquoted keys

Quote all keys: {"name": "value"}

Undefined/NaN

JSON doesn't support undefined or NaN, use null

Comments

JSON doesn't support comments, remove // or /* */

JSON Formatter

Format and pretty-print JSON with syntax highlighting

JSON Minifier

Minify JSON by removing whitespace to reduce file size

JSON to CSV Converter

Convert JSON arrays to CSV format for Excel and spreadsheets

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JSON Formatter

Format and pretty-print JSON with syntax highlighting

JSON Minifier

Minify JSON by removing whitespace to reduce file size

JSON to CSV Converter

Convert JSON arrays to CSV format for Excel and spreadsheets

JSON to XML Converter

Convert JSON objects to XML format for data interchange

YAML to JSON Converter

Convert YAML configuration files to JSON format

Text to HTML Converter

Convert plain text to HTML with proper tags and encoding