JSON Formatter & Validator
Paste JSON below — format, validate or minify it instantly. Nothing leaves your browser.
Frequently asked questions
Why does it say my JSON is invalid when it looks fine?
Common culprits: trailing commas, single quotes instead of double quotes, or an unescaped quote inside a string — JSON is stricter than JavaScript object literals.
Does minify remove comments?
JSON doesn't support comments at all — if your input has // or /* */ comments, it isn't valid JSON and will fail to parse regardless.