JSON Formatter & Validator
Professional JSON formatter, validator, and beautifier. Format, validate, minify JSON with syntax highlighting. Convert to XML, CSV, YAML instantly.
Input JSON
Formatted JSON
Features
Real-time Validation
Instant JSON syntax validation with detailed error messages
Beautiful Formatting
Format JSON with customizable indentation (2, 4, or 8 spaces)
JSON Minification
Compress JSON by removing whitespace for production use
Convert to XML
Convert JSON data to XML format instantly
Convert to CSV
Export JSON as CSV for spreadsheet applications
Convert to YAML
Transform JSON to YAML configuration format
How to Use JSON Formatter
Paste or Upload JSON
Copy your JSON code and paste it into the input area, or upload a .json file. You can also click "Sample" to load example JSON.
Choose Your Action
Click "Format" to beautify your JSON, "Minify" to compress it, or "Validate" to check syntax. Select indentation size (2, 4, or 8 spaces).
Convert (Optional)
Need a different format? Click XML, CSV, or YAML to convert your JSON data instantly.
Copy or Download
Use the Copy button to copy formatted JSON to clipboard, or Download to save as a file.
Frequently Asked Questions
What is JSON Formatter?
JSON Formatter is a free online tool that validates, formats, and beautifies JSON data. It helps developers organize messy JSON code into a readable, well-structured format with proper indentation and syntax highlighting.
How do I format JSON online?
Simply paste your JSON code into the input field and click the 'Format' button. The tool will automatically validate and beautify your JSON with proper indentation. You can choose between 2, 4, or 8 spaces for indentation.
Is this JSON validator safe to use?
Yes, absolutely! All JSON processing happens locally in your browser. Your data is never uploaded to any server, ensuring complete privacy and security for sensitive information.
Can I convert JSON to other formats?
Yes! Our tool supports converting JSON to XML, CSV, and YAML formats. Simply format your JSON first, then click on the desired conversion format button.
What does "Minify JSON" mean?
Minifying JSON removes all unnecessary whitespace and line breaks, creating a compact version of your JSON data. This reduces file size, which is ideal for production environments and API responses.
How do I fix JSON syntax errors?
Click the "Validate" button to check your JSON. If there are errors, the tool will show you the exact line and column number where the error occurred, along with a descriptive message to help you fix it.
Is there a file size limit?
There is no strict file size limit, but very large JSON files (over 10MB) may take longer to process depending on your browser and device performance.
Do I need to create an account?
No! Our JSON formatter is completely free to use without any registration or signup. Simply open the tool and start formatting your JSON immediately.
About 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. It is widely used in web applications, APIs, and configuration files.
A properly formatted JSON makes it easier to debug, understand data structure, and maintain code. Our JSON formatter helps developers work more efficiently by providing instant validation and beautiful formatting.