Unix Permissions Calculator

Calculate and convert Unix file permissions (chmod). Toggle permissions to see the octal and symbolic notation, or enter an octal value to see the permissions breakdown.

How to Use

  1. Toggle permissions for owner, group, and others using the buttons
  2. Enter an octal value (e.g., 755) to parse and display permissions
  3. Use common presets for quick permission configuration

Input

Owner

Group

Others

Common Presets

Output

Octal Notation

755

Symbolic Notation

rwxr-xr-x

Command

chmod 755 filename
r = read (4), w = write (2), x = execute (1). Sum the values for each category.