Zap
Chmod
Unix File Permission Calculator
Runs entirely in your browser
Enter Numeric Permission
Enter a 3-digit octal value (e.g., 755, 644, 777)
Permission Grid
Read (4)
Write (2)
Execute (1)
Owner
Group
Other
Numeric
755
Symbolic
rwxr-xr-x
File Type
-rwxr-xr-x
Command Preview
$
chmod 755 filename
Copy
Common Presets
755
Standard Executable
Owner: full | Group/Other: read + execute
644
Standard File
Owner: read + write | Group/Other: read only
777
Full Access
Everyone: read + write + execute (not recommended)
600
Private File
Owner: read + write | Group/Other: none
700
Private Directory
Owner: full access | Group/Other: none
444
Read Only (All)
Everyone: read only, no write or execute
660
Shared File
Owner + Group: read + write | Other: none
750
Shared Directory
Owner: full | Group: read + execute | Other: none
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