About Chmod Calculator

Chmod Calculator helps you easily calculate Linux file permissions using checkboxes or numeric input. Instantly see the octal value and the corresponding chmod command.

• How does it work? Check or uncheck permissions for Owner, Group, and Others. The octal value and chmod command update instantly. You can also type a 3-digit octal value to update the checkboxes.
• Why use it? Avoid mistakes and quickly generate the correct chmod command for your files and scripts.

All processing happens locally in your browser. No data is sent to any server.