Free Online JSON Tools - Format, Validate & Convert JSON
Professional JSON utilities for developers and data analysts. Format, validate, minify, compare, and convert JSON data instantly. All tools work directly in your browser - fast, secure, and completely free. No registration or download required.
JSON Formatter & Validator - Beautify Your JSON Online
Instantly format and validate JSON with our free online JSON formatter. Supports custom indentation, syntax validation, and displays detailed statistics about your JSON structure.
JSON Minifier - Compress JSON Online
Reduce JSON file size by removing unnecessary whitespace and newlines. Perfect for API responses and reducing bandwidth usage.
JSON Compare Tool - Find Differences Between JSON Files
Compare two JSON objects side-by-side and identify differences instantly. Useful for debugging API responses, testing, and data validation.
JSON to CSV Converter - Convert Between JSON and CSV Online
Free online converter to transform JSON data into CSV format or convert CSV files back to JSON. Perfect for Excel imports and data analysis.
JSON to XML Converter - Transform JSON and XML Online
Convert JSON to XML format or parse XML into JSON structure. Essential for API integration, data migration, and web service development.
JSON Escape & Unescape Tool - Handle JSON String Encoding
Escape special characters in JSON strings for safe embedding in code, or unescape encoded JSON. Essential for developers working with JSON in strings.
Why Use Our JSON Tools?
- JSON Format & Validate: Beautify messy JSON with customizable indentation (2, 4, or 8 spaces) and validate syntax errors instantly. See real-time statistics including line count, character count, and file size.
- JSON Minify: Compress JSON by removing all unnecessary whitespace and newlines. Reduce file size for faster API responses and lower bandwidth costs. Shows exact bytes saved.
- JSON Compare: Find differences between two JSON objects with detailed diff reporting. Shows added, removed, and modified values with full path tracking.
- JSON to CSV Conversion: Convert JSON arrays to comma-separated values (CSV) format for Excel, Google Sheets, or database imports. Also converts CSV back to JSON format.
- JSON to XML Conversion: Transform JSON data structures into XML markup and vice versa. Perfect for SOAP APIs, legacy system integration, and cross-format data exchange.
- JSON Escape/Unescape: Safely escape special characters for embedding JSON in JavaScript strings, HTML, or other code. Also unescape previously encoded JSON.
- 100% Client-Side Processing: All operations happen directly in your browser using JavaScript. Your data never leaves your computer - completely private and secure.
- No Registration Required: Free JSON tools with no signup, no limits, and no tracking. Works offline once loaded.
- Developer-Friendly: Built by developers for developers. Clean interface, keyboard shortcuts, and instant results.
Common Use Cases
Web Developers: Debug API responses, validate configuration files, test REST endpoints, format JSON for documentation.
Data Analysts: Convert JSON exports to CSV for spreadsheet analysis, compare datasets, transform API data for visualization tools.
DevOps Engineers: Validate configuration files, compare environment configs, minify JSON for deployment, parse log files.
QA Testers: Compare API responses across environments, validate JSON schemas, test data transformations.
Students & Educators: Learn JSON syntax, understand data structures, practice data format conversions.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that's easy for humans to read and write, and easy for machines to parse and generate. JSON is widely used for APIs, configuration files, data storage, and web service communication. It supports key data types including objects, arrays, strings, numbers, booleans, and null values. Our JSON tools help you work with JSON efficiently whether you're a beginner or expert developer.