Format and validate your JSON instantly with this free online tool. Paste any raw or minified JSON into the input field, click Format JSON, and get a clean, properly indented result in one click. The validator automatically detects syntax errors and shows you exactly what went wrong. Works with any JSON structure — APIs, config files, database exports. No account, no limits, no data stored.
How to use the JSON Formatter
Paste your raw JSON into the left panel. Click Format JSON to beautify it with 2-space indentation, or Minify to compress it into a single line. Use Copy to copy the result to your clipboard instantly. If your JSON contains a syntax error, the tool highlights the exact issue so you can fix it quickly.
Frequently asked questions
Is my JSON data stored or sent to a server?
No. The formatter runs entirely in your browser using JavaScript. Your data never leaves your computer and is never sent to any server.
What is the difference between Format and Minify?
Format adds indentation and line breaks to make JSON human-readable. Minify removes all whitespace to produce the most compact version — useful for APIs and performance optimization.