Format, validate, or minify JSON. Inspect syntax errors and copy the corrected output.
Format JSON directly in the input field.
Valid JSON is formatted when you leave the editor.
Your formatted JSON preview will appear here.
JSON is a text format for structured data. The formatter checks your input as you type and shows valid JSON in a readable layout.
Choose indentation, sort object keys, or allow JSONC comments and trailing commas. Processing stays in your browser.
Inspect API responses, configuration files, and structured data while developing.