A free, easy-to-use online tool to edit, format, validate, and beautify your JSON data
Welcome to our free online JSON Editor, a comprehensive web-based tool that combines a JSON Viewer, JSON Editor, JSON Formatter, JSON Validator, and JSON Beautifier all in one place. This powerful tool allows developers, data analysts, and anyone working with JSON data to effortlessly manipulate and visualize JSON structures without installing any software.
Transform messy, minified JSON into a well-formatted, readable structure with proper indentation. Make your JSON data human-readable with just one click.
Instantly validate your JSON syntax to catch errors before they cause problems in your application. Our validator highlights issues and shows exactly where errors occur.
Switch between Tree, Code, Form, Text, and Preview modes to interact with your JSON data in the way that works best for your current task.
Compress your JSON by removing all unnecessary whitespace, making it optimal for storage or transmission while maintaining complete functionality.
When working with RESTful APIs, our JSON Editor helps you format API responses for better readability, create request payloads, and validate data structures before sending them to endpoints.
Many modern applications use JSON for configuration files. Our editor makes it easy to update these files while ensuring they remain syntactically valid.
Transform JSON data exported from databases or other systems into the format you need. Our tree view makes it simple to explore complex nested data structures.
Edit package.json files, tsconfig.json, or other configuration files commonly used in web development with confidence that your syntax remains valid.
JSON (JavaScript Object Notation) has become the standard data interchange format for web applications due to its simplicity, readability, and universal support. Its lightweight nature makes it ideal for APIs, configuration files, and data storage.
The main advantages of JSON include:
Our free online JSON Editor requires no installation, registration, or download. It works directly in your browser and is compatible with all major operating systems and browsers.
Simply paste your JSON data into the editor above and start working with it immediately!
Last Updated: 3/25/2025