CHMOD Permissions Calculator
Calculate Linux/Unix file permissions with a visual grid. Octal and symbolic notation.
Numeric
755
Symbolic
rwxr-xr-x
You use this tool often? Pro includes files up to 500 MB and priority processing.
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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Use →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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