Development utility

Unix chmod calculator

Toggle read, write and execute permissions for owner, group and others with an immediate command preview.

โœ“ 100% localโœ“ No sign-upโœ“ Mobile friendly
01

Permissions

Permissions
Owner
Group
Others
02

Command and notation

Ready. Everything is processed locally.

03

Understand every bit

Each permission group adds read (4), write (2) and execute (1). The generated symbolic notation helps verify the result.