JSON Formatter
Pretty-print and indent JSON.
How to use JSON Formatter
- Paste JSON
- Format
- Copy result
About JSON Formatter
JSON Formatter cleans up and pretty-prints messy or minified JSON so it is easy to read and debug. It re-indents your data with consistent spacing and validates the structure as it goes, flagging syntax errors.
It is built for developers working with APIs, config files and logs. Paste your JSON, choose an indent size, and copy the beautifully formatted result. Free, instant and private.
Features
- ✓100% free with no usage limits
- ✓Works in any browser — nothing to install
- ✓Instant live preview of your result
- ✓Mobile, tablet and desktop friendly
Benefits
- ★Save time with fast, one-click processing
- ★No software, no registration and no email required
- ★Your data stays private — nothing is stored
- ★Completely free, with no hidden costs or watermarks
- ★Use it anywhere, on any device with a browser
Frequently asked questions
Does JSON Formatter validate my JSON?
Yes. If your JSON has a syntax error the tool tells you instead of producing broken output, so it doubles as a quick validator.
Can it handle large JSON files?
It comfortably formats large payloads. Processing happens locally in your session for speed and privacy.
Is JSON Formatter free to use?
Yes, JSON Formatter is completely free with no usage limits, no watermarks and no sign-up required.
Do I need to install software or create an account?
No. The tool runs entirely in your web browser — there is nothing to download and no account to create.
Is my data stored or shared?
No. Your input is processed securely in your session and is never stored or shared.
How do I use JSON Formatter?
It takes just a few steps: paste json; format; copy result.
Does JSON Formatter work on mobile and Mac/Windows?
Yes. It works in any modern browser on phones, tablets, Windows, macOS and Linux.