Chmod Calculator
Unix permission calculator: checkboxes, octal, and symbolic.
Permission grid
Toggle read/write/execute per owner, group, other
| read | write | execute | |
|---|---|---|---|
| owner | |||
| group | |||
| other |
Result
Octal, symbolic, and chmod command
Octal
755
Symbolic
rwxr-xr-x
Command
chmod 755 <file>
About the Chmod Calculator
Calculate Unix file permissions interactively — toggle read/write/execute checkboxes per owner, group, and other, and see the equivalent octal digits, symbolic notation, and chmod command, all kept in sync.
Examples
755 permissions
rwxr-xr-xOutput
chmod 755 <file>Keyboard shortcuts
- Copy the main outputCtrl / ⌘ + Shift + C
- Download the resultCtrl / ⌘ + S
- Share this toolCtrl / ⌘ + Shift + S
- Reset the inputsAlt + R
- Open the tool search paletteCtrl / ⌘ + K
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Frequently asked questions
Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser