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Toggle Unix file permissions and convert between numeric and symbolic notation.
Calculate Unix file permission values with a visual toggle interface. Toggle read, write, and execute bits for owner, group, and others. Instantly converts between numeric (755) and symbolic (rwxr-xr-x) notation.
The Chmod Calculator simplifies Unix file permission management by providing an interactive visual toggle interface for read, write, and execute bits. It instantly translates configurations between numeric octal values and symbolic notation, eliminating manual calculation errors. Being completely free and browser-based, it offers a quick and lightweight way to determine correct permissions without needing to reference man pages or external documentation.
Good to know: This tool is purely a calculation and conversion aid; it does not connect directly to servers or apply permissions to live file systems.
Quickly calculate Unix file permissions by toggling visual bits to generate numeric and symbolic notation.
Open the Chmod Calculator tool
Navigate to the Chmod Calculator interface to begin setting your Unix file permissions.
Toggle permissions for each user class
Select the read, write, and execute checkboxes for the Owner, Group, and Others categories.
Review the generated permission values
Watch the tool instantly convert your selections into both numeric values like 755 and symbolic strings like rwxr-xr-x.
Copy the resulting chmod command
Copy the final numeric or symbolic notation to use in your Linux or Unix terminal.
Estimated time: PT1M
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| Entity | Read (4) | Write (2) | Execute (1) | Value |
|---|---|---|---|---|
| Owner | 7 | |||
| Group | 5 | |||
| Other | 5 |
755-rwxr-xr-xchmod 755 filename