Chmod Permission Calculator
Inspect owner, group and other permissions, including setuid, setgid and sticky bits. Change checkboxes or enter an octal mode to see the corresponding symbolic permissions.
Permission result
755 · rwxr-xr-x
Execute means traversal/search for directories. Mode bits alone do not account for ACLs, ownership, mount rules or directory special-bit preservation. No command is executed. GNU mode reference.
About the Chmod Permission Calculator
Inspect owner, group and other permissions, including setuid, setgid and sticky bits. Change checkboxes or enter an octal mode to see the corresponding symbolic permissions.
Calculated in this browser. This tool never runs chmod or changes permissions on your computer or server.
How to use Chmod Permission Calculator
Enter a mode
Use three or four octal digits, or start with a labeled preset.
Inspect each permission
Toggle read, write, execute/search and special bits. Review warnings for broader access.
Check the real environment
ACLs, ownership, mount options and operating-system rules can change effective access.
Common Use Cases
Complete a quick chmod permission calculator task without installing software.
Use Chmod Permission Calculator for this workflow without sending the input to an external service.
Keep a reusable result or draft in your local workspace.
Use Chmod Permission Calculator for this workflow without sending the input to an external service.
Combine the output with related tools in the same workflow.
Use Chmod Permission Calculator for this workflow without sending the input to an external service.
Frequently Asked Questions
Common questions about Chmod Permission Calculator.
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