chmod calculator

Turn permission ticks into octal and symbolic chmod values, or parse an existing mode back into checkboxes locally.

user read user write user execute

group read group write group execute

other read other write other execute

Or parse an existing mode

Result

Accepts three or four octal digits, a nine character rwx string, ls -l style output, and symbolic clauses such as u+x or a=r. Clauses are applied to the ticks you already have, exactly as chmod adds to the mode a file already has. Special bits from a four digit mode are shown but not edited by the ticks.