Prettify minified or unformatted JSON with consistent 2-space indentation, making it easy to read, review, and diff. A syntax check runs first so you always get valid output — or a clear error if the input is malformed. Use the minify button to go the other direction and produce compact, whitespace-free JSON.
Paste CSV data and view it as a sortable, formatted table instantly in your browser.
Remove empty rows, empty columns, and trim extra whitespace from CSV data. Preview the cleaned result and copy to clipboard. Free.
Validate JSON instantly with line-level error reporting. Paste your JSON and see exactly where the syntax error is — plus root type, depth, and key count. Free.
How to Validate JSON (And Fix Common Errors)
A single misplaced comma or missing bracket can break your entire application. Here's how to validate JSON and understand the most common errors.
How to Format JSON for Readability
Raw JSON is often compressed into a single line. Formatting it with consistent indentation makes debugging and reviewing far easier.