Chmod Calculator

This tool is designed to help you calculate Unix file permission values using a visual toggle interface. It allows you to define read, write, and execute bits for the owner, group, and others to ensure your Linux or Unix files have the correct access levels.

To use the tool, simply click the visual toggles for the specific permissions you want to assign to each user category. The calculator will instantly generate both the numeric notation, such as 755, and the symbolic notation, like rwxr-xr-x, for you to copy and use.

Yes, this is a free developer tool that does not require any credits to use. Anonymous users can perform up to 500 calculations, while authenticated users have a higher rate limit of 2,000 requests.

Yes, the calculator provides instant conversion between numeric values and symbolic rwx strings. As you toggle the visual permissions, both formats update in real-time to match the selected configuration.

Your data privacy is maintained because the calculations are performed within your browser session. Since this tool is not AI-driven and functions as a standard web utility, your specific permission configurations are not stored or processed on our servers.

This tool is a web-based utility that runs directly in your browser, so no software installation is required. It is compatible with all modern web browsers and is designed to work efficiently on both desktop and mobile devices.

This specific tool focuses on the standard read, write, and execute permissions for owners, groups, and others. It is optimized for generating the most common 3-digit numeric and 9-character symbolic permission strings used in daily Linux administration.