JSON Formatter
Format, beautify, and validate JSON data online. Detect syntax errors with line numbers. Minify or prettify JSON. Free o
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How to Use JSON Formatter
- Paste your JSON: Paste any JSON data — whether minified, unformatted, or from an API response.
- Format or validate: Click Format/Validate to beautify the JSON with proper indentation. The tool also detects syntax errors with line numbers.
- Minify if needed: Use the Minify button to compress JSON by removing all whitespace for production use.
About JSON Formatter
JSON Formatter is a developer-friendly tool that properly indents (beautifies) unformatted or minified JSON data, making it readable.
- Syntax Validation: If your JSON has errors (like a missing comma or quotes), this tool points out the error along with the line number.
- Minify Option: Also provides an option to minify properly formatted JSON by removing extra spaces and lines to reduce file size.
- Tree View (optional): Makes understanding complex nested JSON objects and arrays much easier.
This is one of the most frequently used tools by developers during API development and debugging.
Frequently Asked Questions
What does the JSON Formatter do?
It takes unformatted or minified JSON and adds proper indentation, line breaks, and spacing to make it readable. It also validates JSON syntax.
Can it detect JSON errors?
Yes! If your JSON has syntax errors (missing commas, brackets, quotes), the tool highlights the error location with a descriptive message.
Can I minify JSON?
Yes, the tool can also minify (compress) JSON by removing all whitespace, reducing file size for production use.