JSON Formatter & Validator | uToolsLib
Data Stays on Your Device
Format, validate, and beautify your JSON data with syntax highlighting
Input JSON
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Formatted JSON
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About JSON Formatter
A JSON Formatter is a tool that helps you format, beautify, and validate your JSON data. It automatically adds indentation and highlights syntax errors, making your JSON easier to read and debug.
- What is JSON? JSON (JavaScript Object Notation) is a lightweight data-interchange format, widely used for APIs and configuration files.
- How does it work? Paste your JSON, click 'Format', and instantly see a readable, indented version. The tool also checks for errors and shows you where they occur.
- Why use it? Clean, valid JSON is essential for web development, API integration, and data exchange. This tool saves time and prevents mistakes.
All processing happens locally in your browser—your data never leaves your device.
