JSON Formatter & Validator
Beautify, minify & validate JSON with error line numbers. Free, private and runs in your browser.
Popular
About the JSON Formatter & Validator
Paste messy JSON and make it readable — or find exactly where it breaks. Supports beautify, minify, sort keys and a collapsible tree view.
100% free
No signup
Private – runs locally
Works on mobile
How to use the JSON Formatter & Validator
- Paste JSON.
- Click Format, Minify or Validate.
- Copy or download.
Frequently asked questions
Is my JSON sent anywhere?
No, everything runs locally in your browser.
Is the JSON Formatter & Validator free?
Yes. JSON Formatter & Validator on Tooliphy is 100% free with no signup, no watermark and no usage limits.
Is it safe to use? Are my files uploaded?
Your data is processed directly in your browser and is never uploaded to our servers, so it stays completely private.
Does it work on mobile?
Yes, the tool works on Android phones, iPhones, tablets and desktops in any modern browser.
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