JSON Formatter
Format, validate, prettify, and minify JSON data with exact syntax error highlighting.
How to Use the JSON Formatter
Input JSON Data
Paste raw, unformatted, or minified JSON text into the editor.
Format or Minify
Click 'Format (2 Spaces)', 'Format (4 Spaces)', or 'Minify' to transform.
Validate & Copy
Fix highlighted errors if invalid, or copy the clean JSON output in one click.
Key Features & Benefits
Frequently Asked Questions
Why does my JSON say invalid?
Common JSON errors include single quotes instead of double quotes, trailing commas after the last array/object element, or missing closing brackets.
Can I format large JSON files?
Yes, files up to several megabytes format smoothly within your browser's V8 engine.
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