Chmod Calculator

Convert between octal (755), symbolic (rwxr-xr-x), and chmod command notations. Toggle permissions visually and apply presets.

PrincipalRead (4)Write (2)Exec (1)Oct

Owner (u)

Group (g)

Others (o)

Special bits

Setuid (4xxx)Setgid (2xxx)Sticky (1xxx)

Octal

Symbolic

rw-r--r--

chmod command

chmod u=rw,g=r,o=r <file>

Numeric chmod

chmod 644 <file>

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