JSON Formatter & Validator
Free online JSON formatter, beautifier, and validator. Format, prettify, minify, and validate JSON instantly with syntax highlighting. 100% client-side, privacy-first. No data leaves your browser.
What is a JSON Formatter?
A JSON formatter is a tool that beautifies and formats JSON data to make it more readable. It adds proper indentation, line breaks, and syntax highlighting to make JSON structure clear and easy to understand.
Features
- Format and beautify JSON with customizable indentation
- Minify JSON to remove all whitespace
- Validate JSON syntax with detailed error messages
- Sort JSON keys alphabetically
- Syntax highlighting for better readability
- Privacy-first: All processing in your browser
- Free forever with no limitations
How to Use the JSON Formatter
- Paste your JSON data into the input editor
- Click "Format" to beautify your JSON
- Use "Minify" to compress JSON by removing whitespace
- Click "Validate" to check for syntax errors
- Use "Sort Keys" to alphabetically order JSON properties
- Copy the formatted output with one click
Why Choose Our JSON Formatter?
Our JSON formatter combines speed, privacy, and features. With instant formatting, syntax highlighting, validation, minification, and client-side processing, it's optimized for both developers and non-technical users. Your data never leaves your browser, ensuring complete privacy and security.
FAQ
What is a JSON formatter?
A JSON formatter is a tool that beautifies and formats JSON data to make it more readable. It adds proper indentation, line breaks, and syntax highlighting to make JSON structure clear and easy to understand.
Is this JSON formatter free?
Yes, DevSwiftTools JSON formatter is 100% free with no limitations. You can format unlimited JSON data without registration or payment.
Is my JSON data safe when using this formatter?
Absolutely. All JSON formatting happens in your browser using client-side JavaScript. Your data never leaves your device and is not sent to any server. This ensures complete privacy and security.
Can I minify JSON as well as beautify it?
Yes, our JSON formatter supports both beautifying (adding formatting) and minifying (removing whitespace) JSON data. Use the minify option to compress JSON for production use.
Does the JSON formatter validate JSON syntax?
Yes, the formatter includes a JSON validator that checks for syntax errors. If your JSON has errors, you'll see clear error messages indicating what needs to be fixed.
What makes this the best JSON formatter online?
Our JSON formatter combines speed, privacy, and features: instant formatting, syntax highlighting, validation, minification, client-side processing, and a clean interface. It's optimized for both developers and non-technical users.