Paste raw JSON into the editor and click Beautify to pretty-print it with proper indentation, or Minify to compress it into a single line for storage or transfer. Validate checks syntax and reports the exact line and column of any error.
Indispensable when reading API responses, debugging configuration files, or preparing data for a colleague. Paste minified logs from a server and beautify them to trace nested structures quickly.
Note: trailing commas and single quotes are invalid in strict JSON. If your source uses them, fix those first - the validator will point them out.
Minified JSON is ideal for storage and transport; beautified JSON is for reading. A good habit: minify before saving to a database, beautify before sending to a colleague. The sample button is also a quick way to test how the tool handles edge cases.
Processing happens locally in your browser, which means confidential payloads stay on your machine - useful when inspecting responses that contain tokens or personal data.
Beautify, Minify, Validate & Format JSON - Free & Instant
This is a completely free online JSON formatter that beautifies, validates, and formats your JSON data in real-time. Whether you're working with API responses, configuration files, or data exchange formats, this tool makes your JSON readable and error-free.