What file formats are supported?

Standard INI files with [sections] and key=value pairs, Java .properties files with key=value or key:value syntax, and Python-style .cfg files are all handled correctly.

Are comments preserved?

Yes — lines starting with ; or # are treated as comments and kept in place relative to the key or section they annotate.

What spacing is applied around = and :?

The formatter normalizes to a single space on each side of the separator: key = value. This matches the most widely accepted convention across INI parsers.

INI File Formatter

Format INI and .properties files with consistent spacing and section headers.

$ini / properties input

lines

0 chars1 lines

$formatted output[READY]

lines

0 chars1 lines

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FAQ

What file formats are supported?: Standard INI files with [sections] and key=value pairs, Java .properties files with key=value or key:value syntax, and Python-style .cfg files are all handled correctly.
Are comments preserved?: Yes — lines starting with ; or # are treated as comments and kept in place relative to the key or section they annotate.
What spacing is applied around = and :?: The formatter normalizes to a single space on each side of the separator: key = value. This matches the most widely accepted convention across INI parsers.

Paste an INI or .properties file and get it back with consistent spacing around = and : separators, clean [section] headers, a blank line between sections, and comments preserved. Works with .ini, .cfg, .properties, and similar key-value config formats.