Chmod calculator

Tick read/write/execute for owner, group and others — and get the octal value and ready chmod command. Or type the octal number and see what it means.

Tick read/write/execute for owner, group and others — and get the octal value and ready chmod command. Or type the octal number and see what it means.

How to use

  1. Tick the permissions or type the octal value
  2. The rwx string, octal number and chmod command update instantly
  3. Copy the command

Frequently asked questions

What does 755 mean?

Owner: read+write+execute (7); group and others: read+execute (5) each. The classic setting for executable files and directories.

What's the difference between 644 and 600?

644 lets everyone read the file; 600 makes it private to the owner — use it for keys and secrets.