🔐 Chmod Calculator
Calculate Unix file permissions with R/W/X checkboxes. Shows octal and symbolic notation with presets.
Owner
Group
Others
Read
Write
Execute
755
rwxr-xr-x
chmod 755 file
Chmod Calculator
Calculate Unix file permissions visually. Toggle R/W/X for owner, group, and others to see octal and symbolic notation.
What is chmod?
Chmod changes file permissions on Unix-like systems. Octal notation (e.g., 755) represents read(4), write(2), execute(1) permissions for each category.