JSON Formatter - Online JSON Beautifier & Validator
Free online JSON formatter with syntax highlighting, validation, and customizable indentation. Format, beautify, and validate JSON instantly — no sign-up required, all data processed locally.
What is JSON Formatter?
A JSON Formatter is an online tool that beautifies and formats JSON (JavaScript Object Notation) data. It takes minified or messy JSON and adds proper indentation, line breaks, and syntax highlighting, making it easy to read, debug, and understand the structure of your JSON data.
How to Format JSON Online
- 1Paste your JSON data into the input area on the left (or click "Example" to load sample data).
- 2Click the "Format" button to beautify your JSON.
- 3The formatted JSON with syntax highlighting will appear in the output area on the right.
- 4Use tabs to switch between Format, Compress, and Validate modes.
- 5Click "Copy" to copy the result, or adjust indentation with 2 or 4 spaces.
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