About JSON Utils
JSON Utils is a comprehensive, free online tool designed to help developers, data analysts, and anyone working with JSON data to format, validate, convert, and fix their JSON files quickly and efficiently.
Key Features
Pretty Print & Minify
Format your JSON for readability or minify it to reduce file size. Perfect for debugging and optimization.
JSON Validation
Instantly validate your JSON syntax and identify errors with detailed error messages and line numbers.
Format Conversion
Convert JSON to YAML, XML, or other formats. Also stringify and parse JSON strings effortlessly.
JSON Repair
Automatically fix common JSON syntax errors like missing quotes, trailing commas, and malformed structures.
Privacy & Security
Client-Side Processing
All JSON processing happens directly in your browser. Your data never leaves your device, ensuring complete privacy and security.
Fast & Offline
No server requests means lightning-fast processing and the ability to work offline once the page is loaded.
No Data Storage
We don't store, log, or transmit any of your JSON data. What you process stays with you.
Who Can Use JSON Utils?
- Developers: Debug API responses, format configuration files, and validate JSON schemas
- Data Analysts: Clean and convert data formats for analysis and reporting
- System Administrators: Manage configuration files and troubleshoot JSON-based configs
- Students & Educators: Learn JSON syntax and practice data manipulation
- API Testers: Validate and format API request/response payloads
Technology
JSON Utils is built with modern web technologies including TypeScript, Webpack, and CodeMirror for syntax highlighting. The tool is designed to be lightweight, fast, and accessible across all modern browsers.
Open Source
JSON Utils is an open-source project. You can find the source code, contribute improvements, or report issues on our GitHub repository.
View on GitHub