JSON Formatter
Format, validate, and beautify JSON data instantly
文件在本地处理，不会发送到我们的服务器
Input JSON
Formatted Output
Formatted JSON will appear here...
常见问题
What is JSON Formatter?
JSON Formatter is a free online tool that helps you format, validate, and beautify JSON data. It makes your JSON more readable and easier to debug.
Is my data secure?
Yes! All processing happens entirely in your browser. Your JSON data never leaves your device, ensuring complete privacy and security.
Can I format large JSON files?
Yes, our tool can handle JSON files up to 10MB. For larger files, we recommend splitting them into smaller chunks.
Does this tool validate JSON syntax?
Yes, our tool automatically validates your JSON and highlights any syntax errors with line numbers and error messages.