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Format, validate, beautify, and minify JSON data instantly. Essential tool for developers with syntax highlighting, error detection, and tree view.
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. It's widely used for APIs, configuration files, data storage, and web applications.
JSON is built on two structures: collections of name/value pairs (objects) and ordered lists of values (arrays). It uses these simple data structures to represent complex data hierarchies.
1. Paste JSON: Copy your JSON data and paste it into the input area on the left.
2. Format: Click "Format / Beautify" to indent and organize your JSON with proper spacing and line breaks for readability.
3. Validate: Click "Validate" to check if your JSON syntax is correct and identify any errors.
4. Minify: Click "Minify" to remove all unnecessary whitespace and create a compact version for production use.
5. Download: Export your formatted or minified JSON as a .json file for use in your projects.
Syntax Highlighting: Color-coded display makes it easy to identify keys, strings, numbers, booleans, and null values at a glance.
Error Detection: Instantly identifies syntax errors with detailed error messages and line numbers for quick debugging.
Format Options: Choose between 2 spaces, 4 spaces, or tab indentation to match your coding style preferences.
Minification: Compress JSON by removing whitespace and line breaks to reduce file size for production deployment.
Statistics: View character count, line count, file size, and validation status in real-time.
Here's an example of properly formatted JSON:
Your privacy is our top priority. All JSON formatting, validation, and processing happens entirely in your browser using JavaScript. Your data is never uploaded to our servers or any external service. All JSON content remains on your device and is automatically cleared when you close the browser tab.