Tools
Chmod Calculator
Calculate Linux file permissions visually. Toggle Read/Write/Execute for Owner, Group, and Others. See octal and symbolic notation.
Owner (u)
Group (g)
Others (o)
Octal
755
Symbolic
rwxr-xr-x
Command
chmod 755 file
4 = read, 2 = write, 1 = execute. Common: 755 (dirs), 644 (files), 600 (private), 777 (public).
How to use this tool
Calculate Linux file permissions visually. Toggle Read/Write/Execute for Owner, Group, and Others. See octal and symbolic notation. This tool is designed to help developers complete one focused task quickly, with clear input and output in the browser.
Suggested workflow
- Enter or select the data you want to work with.
- Use the Chmod Calculator controls to produce or inspect the result.
- Review the result, then copy or download it for your workflow.
Good to know
Your input is processed in the browser unless the tool explicitly makes a network request.
Chmod Calculator - CodeTools Toolbox - 47 free online developer tools.