🇬🇧WebFileTools/CHMOD Calculator
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CHMOD Permissions Calculator

Calculate Linux/Unix file permissions with a visual grid. Octal and symbolic notation.

Read
Write
Execute
Owner
Group
Others

Numeric

755

Symbolic

rwxr-xr-x

What is CHMOD Calculator?

The CHMOD calculator displays an interactive grid to define Linux/Unix file permissions in octal and symbolic notation.

How to use this tool?

Check permissions (read, write, execute) for each category (owner, group, others) or use a preset. Copy the result.

Benefits

  • Interactive visual grid
  • Octal and symbolic notation
  • Common presets (644, 755…)
  • Ready-to-copy chmod command

Frequently Asked Questions

How does the CHMOD system work?
CHMOD uses 3 octal digits (0-7) for Owner, Group and Others. Each digit combines Read (4), Write (2) and Execute (1).
What are the common presets?
644 (standard files), 755 (directories/scripts), 600 (sensitive files), 777 (full access, not recommended in production).
Does the tool generate the command?
Yes, you get the complete chmod command ready to paste in your terminal.

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