chmod calculator

tick permissions to get the octal number, symbolic form and chmod command.

runs on your device · free · no sign-up

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frequently asked questions

how does octal chmod work?

read is 4, write is 2 and execute is 1. add them per class, so rwx is 7 and r-x is 5, giving 755.

which permissions are common?

644 for files, 755 for scripts and directories, 600 for private keys and 700 for private directories.

is anything sent to a server?

no, the calculator is local to your browser.

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