Developer / Security
Unix Permissions Calculator
Convert octal Unix permissions into symbolic form and inspect special bits directly in your browser. Convert octal permissions into symbolic form, toggle flags visually, and inspect special bits without leaving the browser.
755
Octal
rwxr-xr-x
Symbolic
0
Special bits
Dir
Likely use
Loaded 755 preset
Owner
Group
Others
Special bits
Octal
755
Symbolic
rwxr-xr-x
Permission summary
Owner: read, write, execute
Group: read, execute
Others: read, execute
Digit breakdown
Owner
7
rwx
Group
5
r-x
Others
5
r-x
Command snippets
chmod 755 path/to/filechmod -R 755 path/to/directoryPractical signals
Why people come back
It turns confusing octal numbers into something you can verify at a glance.
Preset buttons cover the permissions people run into over and over again.
Copy-ready chmod commands save a trip to terminal notes or old server docs.
Common use cases
Checking whether `755` is right for a deployed script or directory.
Verifying whether a private key or config file should be `600` instead of `644`.
Understanding sticky directories like `/tmp` without mentally decoding `1777` each time.
Why it works well here
No server or file access is needed, so it stays fast and private.
Visual toggles are better than searching a cheat sheet every time.
Octal and symbolic copy buttons make it easy to move straight into docs, terminals, or tickets.