JSON Formatter & Validator
Free online JSON formatter and validator. Beautify, minify, and validate JSON data instantly. Sort keys, customize indentation.
Options
Format and validate your JSON data instantly with our free online tool. Whether you're debugging API responses, editing configuration files, or cleaning up data, this tool makes working with JSON effortless.
All processing happens in your browser. Your data never leaves your device, ensuring complete privacy for sensitive information.
How to Use This Tool
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Use Cases
API Development
Format API responses for easier debugging and analysis of data structures.
Configuration Files
Clean up and validate JSON config files for applications and services.
Debugging
Identify syntax errors in JSON data with clear error messages.
Data Storage
Minify JSON to reduce storage size and bandwidth usage.
Frequently Asked Questions
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data. It's easy for humans to read and write, and easy for machines to parse and generate.
Why format JSON?
Formatted JSON with proper indentation is much easier to read and understand. It helps identify the structure of data, spot errors, and make edits without introducing syntax mistakes.
Why minify JSON?
Minified JSON removes all unnecessary whitespace, reducing file size. This is useful for production environments where you want to minimize bandwidth and storage usage.
Is my data secure?
Yes, all processing happens entirely in your browser. Your JSON data is never sent to any server, making it safe to use with sensitive information.
What JSON errors can this detect?
The tool detects syntax errors like missing quotes, trailing commas, mismatched brackets, and invalid values. Error messages indicate the location of the problem.