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Chmod
Calculator

Calculate Unix file permissions with a visual checkbox grid. Toggle permissions, see numeric and symbolic output instantly. All client-side.

Common:
Numeric
755
Symbolic
rwxr-xr-x
Permission Matrix
Read
Write
Execute
Owner
✓
✓
✓
Group
✓
✓
Other
✓
✓
Owner
7
rwx
Group
5
r-x
Other
5
r-x
Enter Numeric Permission
Command
chmod 755 filename
Permission Breakdown
Ownercan read, write, execute
Groupcan read, execute
Othercan read, execute
Quick Reference
4r--Read
2-w-Write
1--xExecute
6rw-Read + Write
7rwxRead + Write + Execute
0---No permissions
Visual Permissions
Toggle permissions with an intuitive 3x3 checkbox grid. See numeric and symbolic output update in real time.
Reverse Lookup
Enter a numeric permission like 755 and see the corresponding checkbox states and human-readable breakdown.
100% Client-Side
Your data never leaves your browser. No server calls, no logging, no tracking. Completely private.