Chmod Calculator
Pick Linux file permissions with checkboxes to get the octal (755) and symbolic (rwxr-xr-x) forms, or set them from an octal value. Everything runs in your browser.
- Octal
- 755
- Symbolic
- rwxr-xr-x
- Command
- chmod 755 file
FAQ
How is the octal number calculated?
Read=4, write=2, execute=1 are summed per owner/group/others digit. Example: rwx r-x r-x → 755.
What do 755 and 644 mean?
755 gives the owner full access and others read+execute (common for dirs/scripts); 644 is owner read+write and others read (regular files).
Is my input sent to a server?
No. All calculations happen entirely in your browser.
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