Chmod Calculator
Calculate and understand Unix file permissions with our interactive chmod calculator. Features real-time updates and detailed explanations.
chmod 755 filename
Numeric: 755 | Symbolic: rwxr-xr-x
Permission Explanation
Comprehensive Permission Management
Understand and set Unix file permissions with confidence using our interactive calculator.
Interactive Permission Setting
Set file permissions using visual toggles or numeric input with instant updates.
Real-time Command Generation
See the chmod command update instantly as you modify permissions.
Special Permission Support
Handle SetUID, SetGID, and Sticky Bit with clear explanations.
Security Warnings
Get instant feedback about potential security risks in your permission settings.
Detailed Explanations
Learn what each permission means with clear, contextual explanations.
Best Practices Guide
Access common permission patterns and security recommendations.
How to Use the Chmod Calculator
Select user categories (owner, group, others) to set permissions for.
Toggle read, write, and execute permissions using the switches.
Enable special permissions (SetUID, SetGID, Sticky Bit) if needed.
Review security warnings and best practice recommendations.
Copy the generated chmod command for your use.
Read the detailed explanation of your permission configuration.