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Professional JSON Formatter & Beautifier

Format and beautify JSON instantly with our fast, secure, 100% client-side JSON formatter. Supports large files up to 50MB. Monaco Editor powered.

ORIGINAL JSON

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Frequently Asked Questions

Is this JSON formatter free?

Yes, JSON Nova is completely free to use with no limits on file size or usage. All processing happens in your browser, so there are no server costs.

Can I format large JSON files?

Absolutely! JSON Nova can handle JSON files up to 50MB using Web Workers for smooth, lag-free performance even with massive datasets.

Is my data safe when using this formatter?

Yes, 100% safe. All JSON formatting happens locally in your browser. Your data never leaves your computer or gets sent to any server.

What makes this formatter better than others?

JSON Nova uses Monaco Editor (same as VS Code), processes everything client-side for privacy, handles large files smoothly, and works offline as a PWA.

Can I use this JSON formatter offline?

Yes! JSON Nova is a Progressive Web App (PWA). Install it on your device and use it anywhere, even without an internet connection.

Does it support syntax highlighting?

Yes, JSON Nova uses Monaco Editor which provides professional syntax highlighting, IntelliSense, and the same editing experience as Visual Studio Code.

Can I minify JSON as well as beautify it?

Yes, you can both beautify (format with indentation) and minify (compress to single line) JSON with a single click using our formatting tools.

What JSON indentation options are available?

You can customize indentation with 2 spaces, 4 spaces, or tabs. The formatter preserves your preferred style across sessions.

Does it work on mobile devices?

Yes, JSON Nova is fully responsive and optimized for mobile devices, tablets, and desktops with touch-friendly controls.

Can I copy formatted JSON easily?

Yes, there's a one-click copy button that copies your formatted JSON to the clipboard instantly.