JSON Formatter & Validator

Paste your JSON into the input box and choose an action. Format pretty-prints the data with the indentation you select, which makes nested API responses and configuration files far easier to read. Minify strips every unnecessary space and line break, producing the compact form you want when embedding data in code or sending it over the network.

Validate checks the structure and reports the exact parser message, including the character position, whenever something is wrong — usually a trailing comma, a single quote, or an unclosed bracket. When the output looks right you can copy it to the clipboard or download it as a .json file. The parsing uses your browser's built-in JSON engine, so your data is never transmitted anywhere.