About this tool
Toggle owner, group and other read/write/execute permissions to get the octal mode and rwx string, or type an octal value to set the checkboxes — live in your browser.
Frequently asked questions
What do the three digits mean?
Each octal digit is the owner, group and other permission, where read=4, write=2 and execute=1 are summed.
Can I enter a leading digit?
Yes — a 4-digit octal like 0755 is accepted; the leading special-bit digit is ignored here.