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Chmod Calculator.

Convert between octal (755) and symbolic (rwxr-xr-x) Unix file permissions. Click the matrix or paste a value.

Input

Mode
Scoper(4)w(2)x(1)
Owner
Group
Other
Special bits

Output

Configure permissions on the left.

About this tool.

Three input modes: a click-to-toggle matrix for owner / group / other × read / write / execute, an octal field (3 or 4 digits, accepts setuid / setgid / sticky in the leading digit), and a symbolic field (rwxr-xr-x, accepts the leading file-type character). Output covers short and 4-digit octal, short and ls-style symbolic, a ready-to-paste chmod command, and warnings for risky combinations like world-writable and dangling setuid bits.

Privacy.

Runs in your browser

Permissions are computed in your browser. No request is made.

Disclaimer. Provided as-is, with no warranty of any kind. Always check critical results before acting on them. I accept no liability for inaccuracies, bugs, or any loss or damages arising from use of these tools.

Spotted a bug or want to suggest an improvement?Let me know