Chmod Calculator
Easily calculate and convert Linux file permissions. Toggle checkboxes for owner, group, and public to generate octal (755) and symbolic (rwxr-xr-x) notations instantly.
Last updated: May 27, 2026
Example Usage
Check Owner: Read, Write. Check Group: Read. Check Public: Read.
Octal: 644, Symbolic: rw-r--r--
How to use
1. Click the checkboxes to assign read, write, or execute permissions for Owner, Group, and Public.
2. Or type a valid octal number like 755 to update the visual checkboxes.
3. Copy the resulting octal code or symbolic string to your terminal.
Security & Privacy Guarantee
This tool executes entirely within your browser using client-side JavaScript. Your data never leaves your device.
We do not use databases, server logs, or tracking pixels to capture your input. Your API keys and payloads are safe.
Maintained by engineers to ensure deterministic, accurate, and lightning-fast results without bloatware.
Last Updated: — Verified working and accurate.