JSON Formatter & Validator
Format, validate, and beautify JSON with syntax highlighting
Professional JSON formatter and validator with error detection, minification, and beautification. Perfect for debugging APIs and working with JSON data.
Powerful Features
Everything you need in one simple tool
Why Choose Our JSON Formatter & Validator?
Perfect For
See how our tool can help you
API Developers
Debug API responses, format request payloads, and validate JSON schemas.
Frontend Developers
Format configuration files, debug state objects, and work with JSON data.
Data Analysts
Clean and format JSON exports, validate data structures, and extract specific fields.
DevOps Engineers
Format and validate configuration files, debug log outputs, and manage JSON configs.
QA Engineers
Validate test data, format test fixtures, and debug API test responses.
Technical Writers
Format JSON examples for documentation and create readable code samples.
Frequently Asked Questions
JSON formatting adds proper indentation, line breaks, and spacing to make JSON data human-readable and easier to understand.
Yes! Our formatter can handle JSON files of any size, processing them efficiently in your browser.
It detects syntax errors like missing brackets, invalid commas, unquoted keys, and malformed values with precise error locations.
Absolutely! All processing happens in your browser. Your JSON data never leaves your device.
Yes, you can choose indentation size, use tabs or spaces, and select between compact or expanded formatting.