JSON Formatter & Validator
Format, validate and minify JSON data with syntax highlighting.
About JSON Formatter
Format, validate, and minify JSON data instantly. Supports pretty-printing with configurable indentation, JSON validation with clear error messages, key sorting, and one-click minification. All processing happens in your browser — your data never leaves your device.
Before You Use This Tool
A quick overview of what this page is good for, how it handles data, and what to expect before you start.
What It Does
- Format, validate and minify JSON data with syntax highlighting
Access & Privacy
You can use the main workflow without creating an account.
The core workflow is designed for fast in-browser use. Review the page inputs before pasting sensitive information.
Good Fit For
- Debug payloads, strings, and markup quickly during daily development.
- Generate copy-ready output without installing another package.
- Test ideas in the browser before moving into a bigger workflow.
For repeated bulk jobs or advanced automation, dedicated desktop software may still be faster.