What TOML features are supported?

Basic key-value pairs, [section] headers, [[array of tables]], inline arrays, and single/double quoted strings are all handled. Complex multi-line literals and dotted keys have basic support.

Are comments preserved?

Yes — comments on their own line or inline after a value are detected and preserved in the formatted output.

What is the standard TOML formatting style?

The formatter adds a single space on each side of the = sign (key = value), inserts a blank line between sections, and normalizes indentation inside arrays.

TOML Formatter

Format TOML files with consistent whitespace around keys, values, and section headers.

$toml input

lines

0 chars1 lines

$formatted toml[READY]

lines

0 chars1 lines

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FAQ

What TOML features are supported?: Basic key-value pairs, [section] headers, [[array of tables]], inline arrays, and single/double quoted strings are all handled. Complex multi-line literals and dotted keys have basic support.
Are comments preserved?: Yes — comments on their own line or inline after a value are detected and preserved in the formatted output.
What is the standard TOML formatting style?: The formatter adds a single space on each side of the = sign (key = value), inserts a blank line between sections, and normalizes indentation inside arrays.

Paste TOML content and get it back cleanly formatted: consistent spacing around = signs, a blank line between sections, and normalized string quoting. Handles [sections], key=value pairs, arrays, inline tables, and multi-line strings.