Free CHMOD Calculator Online - Linux File Permissions Tool 2026
Easily calculate numeric (octal) and symbolic Linux/Unix file permissions with our visual tick-box interface. Generate chmod terminal commands instantly.
Permission Settings
owner
group
public
Results
Terminal Commands
How to Use
Select the Read, Write, and Execute checkboxes for Owner (User), Group, and Public (Others).
The numeric octal permission value (e.g., 755, 644) updates automatically in real-time.
The symbolic permission string (e.g., -rwxr-xr-x) updates simultaneously.
Click the Copy button next to the generated terminal commands to copy the exact `chmod` command to your clipboard.
Features
FAQ
Managing Linux and Unix file permissions can be confusing, but our free online CHMOD Calculator makes it incredibly easy. Visually select read, write, and execute permissions for owners, groups, and public users to instantly generate the correct octal value (like 755, 644, or 777) and its corresponding symbolic notation. Perfect for webmasters, sysadmins, and developers setting up secure server environments in 2026. Stop guessing Linux permissions and use our free tool to instantly copy the exact, secure `chmod` terminal command you need to protect your website files and directories.
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