Chmod Calculator
Linux file permissions calculator, supports octal and symbolic modes.
chmod 755 filenameType
Owner
Group
Public
Common Permissions
About This Tool
The Chmod Calculator is a handy tool for calculating and converting Linux/Unix file system permissions. It supports intuitive checkbox operations to generate corresponding octal values (e.g., 755) and symbolic representations (e.g., -rwxr-xr-x) in real-time. It also supports reverse parsing—enter a value or symbol to restore permission settings. Includes built-in common presets (e.g., 755, 644, 777) to help beginners and sysadmins quickly set correct file permissions.
Features
- ✅ Bidirectional: Convert between checkboxes, octal, and symbolic
- 🔢 Octal Support: Real-time calculation (e.g., 755, 644)
- 🔣 Symbolic Support: Real-time generation (e.g., -rwxr-xr-x)
- 📚 Presets: Built-in standard file and directory permissions
- 📋 One-click Copy: Quickly copy results to clipboard