Unix Permissions Calculator
Convert chmod octal (e.g. 755, 0644) to symbolic notation (rwxr-xr-x) and back. Classic rwx triplets. Runs in your browser.
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Use Unix Permissions Calculator Online Free
This free online unix permissions calculator runs in your browser. No installation, no signup. Paste your input above and get instant results. Works on desktop and mobile.
How Unix Permissions Calculator Works
Paste or enter your input in the field above. Most tools update in real time. Click the Copy button to copy the output. All processing happens in your browser—your data never leaves your device unless the tool explicitly uses a server feature (such as URL shortening or bcrypt hashing).
This tool is part of the Linux Tools category. Check similar tools below. All everytools are free, no signup required. Works on desktop and mobile.
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Frequently Asked Questions
- How do I read chmod 755?
- 755 in octal means owner rwx (7), group r-x (5), others r-x (5). Symbolically: rwxr-xr-x. Common for executable scripts and directories.
- What is the first digit in 4755?
- The optional fourth octal digit sets special bits: 4 setuid, 2 setgid, 1 sticky. 4755 means setuid on the file plus rwxr-xr-x for the permission triplets.
- Is my input uploaded?
- No. All conversion runs locally in your browser.