Free online Unix file permissions calculator. Visually set read/write/execute permissions and automatically generate octal and symbolic permission values. Supports chmod command generation.
System Administration · Works Offline🔧 Permissions Calculator
Check permission boxes to auto-calculate octal values and chmod commands. | No registration · Data stays private
Role
Read (r)
Write (w)
Exec (x)
Owner
Group
Other
754
rwxr-xr--
Common:
chmod 754 filename
❓ FAQ
Is Unix Permissions Calculator free?
Yes, completely free to use. No signup required or login.
What are octal permissions?
Unix file permissions use a 3-digit octal number: owner/group/others read(4)+write(2)+execute(1) permissions.
What does 755 permission mean?
Owner can read/write/execute (rwx), group and others can read/execute (r-x). Common for directories and executables.