JSON Formatter & Validator
Format and validate JSON online. Paste your JSON to beautify it, minify it, or check it for errors. Free, instant, no data sent to servers.
What Is a JSON Formatter?
A JSON formatter (also called a JSON beautifier or pretty-printer) takes compact or unformatted JSON and adds indentation and line breaks to make it human-readable. It also validates the JSON structure and reports any syntax errors.
JSON (JavaScript Object Notation) is the standard data format for APIs and web services. Formatted JSON is much easier to read, debug, and edit than minified JSON.
All formatting happens in your browser — no data is sent to any server.