Chmod Calculator Online - Free chmod calculator for Linux file permissions.
Free online chmod calculator. Convert between numeric (755), symbolic (rwxr-xr-x), and checkbox permissions. Generate chmod commands instantly.
Permissions
| Read | Write | Execute | |
|---|---|---|---|
| Owner | |||
| Group | |||
| Others |
Owner
R
W
E
Group
R
W
E
Others
R
W
E
rw-r--r--
chmod 644 filenameHow to Use Chmod Calculator
- 1Toggle the Read, Write, Execute checkboxes for Owner, Group, and Others.
- 2Or type a numeric value (e.g., 755) to set permissions directly.
- 3View the symbolic representation and generated command.
- 4Copy the chmod command with one click.
Frequently Asked Questions
What does chmod 755 mean?
chmod 755 gives the owner full permissions (read, write, execute = 7), while group and others get read and execute only (5). This is the most common permission for web directories and scripts.
How do I convert numeric to symbolic permissions?
Each digit in the numeric mode maps to one permission set: 4 = read (r), 2 = write (w), 1 = execute (x). Sum them: 7 = rwx, 6 = rw-, 5 = r-x, 4 = r--.
What is the difference between chmod and chown?
chmod changes file permissions (who can read/write/execute), while chown changes file ownership (who owns the file). They serve different purposes in access control.
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Learn More
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