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chmod Calculator

chmod Calculator

Calculate Unix file permissions in numeric and symbolic

Enter Numeric Permission

Owner

Group

Others

Numeric

644

Symbolic

-rw-r--r--

Command

chmod 644 filename

How It Works

Calculate Unix/Linux file permissions with an interactive visual editor. Toggle read, write, and execute for owner, group, and others. Get both numeric (755) and symbolic (-rwxr-xr-x) output.

Frequently Asked Questions

What does 755 mean?

Owner can read, write, and execute (7). Group can read and execute (5). Others can read and execute (5). Common for scripts and directories.

Can I enter a numeric value?

Yes, type a 3-digit octal number (like 644) and the permission checkboxes will update automatically.

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