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Developer Utilities

chmod Permission Calculator

Turns read, write, and execute checkboxes into a 3-digit octal mode and an rwx string. The command has no filename.

Owner
Group
Others

Octal

755

Symbolic

rwxr-xr-x

Command

chmod 755

How to use chmod Calculator

  1. Tick the read, write, and execute boxes for owner, group, and others.
  2. Read the octal mode and symbolic string.
  3. Run the shown chmod command only on the intended files.

A practical example

Owner rwx, group rx, others rx is 755, written rwxr-xr-x.

What to check before using the result

The shown chmod command changes only the files it is run against. This models POSIX file modes. ACLs, umask, setuid, setgid, the sticky bit, and Windows NTFS permissions are out of scope.

Local processing

Inputs are processed in this tab. The site and some engines still load network assets.

Inspect before sharing

Review the output and keep the original file. Large files may take longer to process.

No account needed

No account, API keys, or watermarks required.