JSON Formatter
Format and beautify JSON online.
🔒 Your data stays in your browser.
Quick answer: JSON formatting adds indentation and spacing to compact or minified data so you can review keys, values, and nested objects more easily.
What is JSON Formatter?
Format and beautify JSON online. DevToolsHub provides a focused, private workspace that works directly in modern browsers, helping developers format, decode, validate, or inspect content without uploading sensitive data.
How to use JSON Formatter
- Paste a JSON response or object into the input area.
- Run the formatter to add indentation and line breaks.
- Review or copy the readable JSON for debugging or documentation.
When should you use it?
Read API responses
Format a JSON payload from an API or backend service so you can inspect structure, keys, and values quickly.
Review config files
Beautify JSON config data before checking important settings or comparing environment-specific values.
Features
- Free and available without registration
- Local browser processing for privacy
- Copy, paste, clear, examples, and downloads
- Responsive and keyboard-friendly interface
Frequently asked questions
What does a JSON formatter do?
It turns minified or compact JSON into readable multi-line output so nested data becomes easier to inspect.
Why format JSON before debugging?
It makes each property and object easier to scan, which reduces errors when comparing API responses or config files.
Can I format JSON locally in the browser?
Yes. This tool processes the data in the browser, which keeps the content private and avoids server-side uploads.