A JSON formatter beautifies raw JSON with consistent indentation and highlighting so you can read APIs, configs, and logs faster. This page also validates syntax and points you to repair when the payload is broken—all in the browser, free, no account.
Beautify / minify with syntax highlighting
Validate as you type; jump to repair when invalid
Private by design — processing stays in your browser
A JSON formatter (also called a JSON beautifier) takes compact or messy JSON and adds consistent indentation and structure so people can read it—without changing the data meaning when the input is valid.
Yes. jsonformats.com formatter is free and does not require signup. Formatting and validation run in your browser; we do not need your JSON uploaded to a server for the core format flow.
Yes. The formatter highlights syntax problems as you edit. For broken payloads, open JSON Repair at https://jsonformats.com/en/json-repair, then return here to beautify the fixed text.
Formatting improves readability (whitespace and nesting). Validation checks whether the text is syntactically valid JSON. This page is built for both: format for clarity, validate before you ship an API payload.
Bookmark https://jsonformats.com/en/formatter (Chinese: https://jsonformats.com/zh/formatter). Do not use /json-formatter — that path is not a supported live product URL.