What is Linux Chmod Permissions Calculator?
Linux Chmod Permissions Calculator calculates octal numbers (e.g. 755) and symbolic notation (rwxr-xr-x) for Linux/Unix file permissions.
How to use Linux Chmod Permissions Calculator
Check permission checkboxes for Owner, Group, and Public (Read, Write, Execute) to generate octal numbers and command strings.
Key features
- Interactive permission checkboxes
- Outputs octal (755) and symbolic (rwxr-xr-x) notation
- Generates chmod terminal commands
- 100% client-side operation
Common use cases
- Setting file permissions for web servers and SSH keys
Technical details & standards
Computes bitwise permission bitmasks client-side.
Frequently asked questions
What permissions does chmod 755 grant?
Owner: Read/Write/Execute (7), Group: Read/Execute (5), Public: Read/Execute (5).
Is my data safe?
All processing happens entirely in your browser. Your data never leaves your device and is never sent to or stored on a server.
Does it work offline?
Yes. Once the page has loaded, most tools keep working without an internet connection.