Free online formatters

Online code formatters

Prettify or minify JSON, HTML, CSS, JavaScript, and SQL right in your browser. Files are processed locally — nothing is sent to a server.

JSON formatter

Pretty-print JSON with configurable indentation, or minify to a single line for transport.

HTML formatter

Format HTML markup with consistent indentation and tag wrapping.

CSS formatter

Prettify CSS or minify to reduce file size for production.

JavaScript formatter

Standardize JS/TS indentation, quotes, and semicolons.

SQL formatter

Format SQL statements with keyword casing and clause alignment.

Open editor to format code