Chmod Calculator

Calculate Unix file permissions

Share:
ReadWriteExecute
Owner
Group
Other
Symbolic:-rw-r--r--
Command: chmod 644 filename
Owner: read, write | Group: read | Other: read
Common Presets

How to Use Chmod Calculator

  1. 1Click checkboxes to set read/write/execute permissions for owner, group, and other.
  2. 2Or type a numeric value like 755.
  3. 3See both numeric and symbolic representations.
  4. 4Use presets for common configurations.

About Chmod Calculator

Calculate Unix file permissions with an interactive checkbox grid. Convert between numeric (755) and symbolic (rwxr-xr-x) formats. Includes common permission presets like 644, 755, and 777.

Frequently Asked Questions

What does chmod 755 mean?

Owner can read, write, and execute (7). Group and others can read and execute but not write (5). This is common for executable scripts and directories.

What is the difference between 644 and 755?

644 allows owner to read/write and everyone else to only read (for files). 755 adds execute permission (for scripts and directories).

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