Tools
🛡️ Chmod Calculator
Toggle Unix file permission checkboxes to get the octal value, or type octal to set permissions.
Read
Write
Execute
Owner
Group
Other
Octal
644
Symbolic
-rw-r--r--
command
chmod 644 filename
644: Owner can write; group and others read-only. Standard for web files.
About this tool
Calculate Unix file permission values — convert between symbolic notation (rwxr-xr--) and octal values (755), or build permissions interactively by toggling read, write, and execute bits for owner, group, and others.