Chmod calculator
Calculate Unix file permissions by toggling read, write, and execute for owner, group, and others. Get octal and symbolic output.
Owner
Group
Others
Octal
755Symbolic
rwxr-xr-xCommand
chmod 755 path// About this tool
Work out chmod values without remembering bit math. Toggle permissions for each role and copy the octal, symbolic, or command form. The command is ready to copy and run.
// How to use it
- Toggle read, write, and execute for each role.
- Review the octal and symbolic values.
- Copy the chmod command.
// Frequently asked questions
What do the numbers 4, 2, and 1 mean?
They are read, write, and execute bits; adding them gives the permission value for each role.
Does it change file permissions?
No. It only calculates the value; run chmod yourself on the target system.