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Chmod Calculator
chmod · linux · permissions
Owner
6
Group
4
Others
4
Octal
644
Symbolic
-rw-r--r--
chmod command
chmod 644 filename
Numeric
420
How to use
- 1
Toggle permission checkboxes or type an octal.
- 2
Set owner, group and others permissions.
- 3
Copy the octal, symbolic or chmod command.
FAQ
Is this tool free?
Yes — no sign-up, no installation, completely free to use right away.
What is this tool?
Calculate Unix file permissions using checkboxes. Shows octal, symbolic, and chmod command output. You can use it for free with no sign-up or installation — just open the page and start right away.