Chmod Calculator
Calculate Unix file permission modes visually.
| Role | Read (r) | Write (w) | Execute (x) | Octal | Symbol |
|---|---|---|---|---|---|
| owner | 6 | rw- | |||
| group | 4 | r-- | |||
| other | 4 | r-- |
Octal
644Symbolic
rw-r--r--chmod command
chmod 644 filenameCommon Presets
Calculate Unix file permissions visually. Toggle read, write, and execute bits for owner, group, and others, and instantly get the octal number, symbolic notation, and chmod command.
Key Features
Checkbox Grid
Toggle read (r), write (w), execute (x) for owner, group and other independently.
Octal Input
Type an octal like 755 directly to set all checkboxes at once.
Symbolic Notation
Shows the full symbolic string like rwxr-xr-x as you adjust permissions.
chmod Command
Generates the complete chmod shell command ready to run.
Presets
8 common permission combinations with descriptions (644, 755, 600, 777, etc.).
How to Use
- 1Check/uncheck the r/w/x boxes for each role.
- 2Or type a 3-digit octal (e.g. 755) to set permissions directly.
- 3Click a preset like 644 or 755 to load common configurations.
- 4Copy the octal, symbolic notation, or chmod command.