JSON Formatter & Validator
Free online JSON formatter to format, minify, validate, and sort JSON data. Handle API responses, configuration files, log data, and more. Essential tool for developers working with JSON data.
Key Features
- JSON Formatting - Pretty print JSON for readability with customizable indentation
- JSON Minify - Remove unnecessary whitespace to reduce file size
- JSON Validation - Check if JSON is valid with error detection
- Sort Keys - Sort JSON keys in alphabetical order
- Indent Control - Choose 2, 4, 8 spaces or custom indentation
- File Download - Save result as JSON file
- One-Click Copy - Copy result to clipboard instantly
- Bilingual Support - Korean/English language switching
How to Use JSON Formatter
- Paste JSON or text into the input field
- Select desired action (Format, Minify, or Validate)
- Choose indentation and sort options if needed
- Click the corresponding button to convert
- Click 'Copy' to copy or 'Download' to save as file
What is JSON?
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format. It is human-readable and easy for machines to parse. JSON is widely used in web APIs, configuration files, data storage, and logging systems.
JSON Formatting Explained
JSON formatting converts minified JSON into a readable, indented format. This makes it easier to understand the data structure. You can choose indentation level (2, 4, 8 spaces, etc.) based on your preference.
JSON Minification Explained
JSON minification removes all unnecessary whitespace and line breaks. This reduces file size, saving bandwidth and improving load times, especially important for large JSON files and mobile applications.
JSON Validation Explained
JSON validation checks if input is valid JSON format. This helps catch syntax errors during development, preventing API failures and parsing errors.
JSON Formatter Use Cases
- Format API response data for easier understanding
- Organize and manage configuration files like package.json
- Pretty print server logs for analysis
- Standardize JSON with key sorting for CI/CD comparison
- Reduce file size with minification for deployment
- Validate data format for data integrity
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