Free JSON Formatter
Format, validate, beautify, and minify your JSON data instantly. Includes syntax validation and structure analysis.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate.
How to Use the JSON Formatter
Paste Your JSON Data
Copy your JSON data and paste it into the input text area on the left. You can also type JSON directly. The tool accepts any valid JSON including objects, arrays, and nested structures.
Choose Format Options
Select your desired formatting: click "Beautify" to add proper indentation and line breaks for readability, or click "Minify" to remove all whitespace for compact output.
Review Validation Results
The formatter automatically validates your JSON syntax. If there are errors, you'll see a clear error message indicating the problem. Valid JSON will be formatted and displayed in the output area.
Copy the Formatted Output
Click the copy button to copy the formatted JSON to your clipboard. You can then paste it into your code editor, API testing tool, or configuration file.
Pro tip: Your data is processed entirely in your browser. Nothing is sent to any server, ensuring complete privacy.
About JSON Formatting
JSON (JavaScript Object Notation) is the most common data format used in web APIs and configuration files. Our formatter helps you quickly validate and beautify JSON data for debugging and development. Use the beautify option to add proper indentation for readability, or minify to reduce file size for production.
Key Features
- Beautify: Add proper indentation and formatting
- Minify: Remove whitespace to reduce file size
- Validate: Check for syntax errors in your JSON
- Copy: One-click copy to clipboard
- Secure: All processing done in your browser
Frequently Asked Questions
What is JSON and why format it?
JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data. Formatting JSON adds proper indentation and line breaks, making it easier to read, debug, and understand the structure of your data.
What is the difference between beautify and minify?
Beautifying JSON adds indentation, line breaks, and spacing for human readability. Minifying removes all unnecessary whitespace to reduce file size for production use. Beautified JSON is easier to read, while minified JSON is more efficient for data transfer.
Does this tool validate JSON syntax?
Yes, our JSON formatter validates your JSON syntax as you paste or type. If your JSON contains errors, the tool will display an error message indicating where the problem is, helping you quickly fix syntax issues.
Can I format large JSON files?
Yes, our formatter can handle JSON files of considerable size. However, very large files (several megabytes) may take a moment to process. For extremely large files, consider using a desktop application or command-line tools.
Is my JSON data secure when using this tool?
Yes, all JSON formatting is done entirely in your browser. Your data is never sent to any server, ensuring complete privacy and security of your information.
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