Tools / Chmod Calculator

Chmod Calculator

Calculate Unix file permissions. Convert between symbolic (rwx) and numeric (755) formats with a visual permission grid.

7,200 AI Tokens Used
Feb 2, 2026 Created
developerlinux
Categories
Read (4)
Write (2)
Execute (1)
Owner
Group
Others
Octal
644
Symbolic
rw-r--r--
chmod 644 filename

Common Permissions

Permission Reference

r = Read (4)
w = Write (2)
x = Execute (1)
- = No permission (0)

Owner = first digit, Group = second digit, Others = third digit

How This Tool Was Built

This tool was created entirely by AI. Here's the exact prompt used to generate it:

Prompt Used 
Create a Chmod Calculator tool with these features:

1. Octal input field (e.g., 755)
2. Permission grid with checkboxes:
   - Owner, Group, Others (rows)
   - Read, Write, Execute (columns)
3. Real-time sync between input and grid
4. Show both octal and symbolic (rwxr-xr-x) formats
5. Copy buttons for each format
6. Show chmod command
7. Common permissions presets (755, 644, etc.)
8. Reference section explaining values

Make it developer-friendly with orange as the accent color.
AI
Claude AI Model
#
7,200 Tokens Used
100%
AI-Generated Code Origin