Free chmod-calculator.com Alternative
chmod-calculator.com is a straightforward online tool for converting Linux file permissions between different formats. It offers a clean interface for basic chmod calculations. If you're looking for a more feature-rich alternative with visual toggle grids, special bits support (setuid/setgid/sticky), and live terminal output preview, Fixie's chmod Calculator provides a more comprehensive experience.
Try chmod Calculator Free →chmod Calculator vs chmod-calculator.com
| Feature | Fixie chmod Calculator | chmod-calculator.com |
|---|---|---|
| Price | Free forever | Free |
| Signup Required | No | No |
| Special Bits Support | Yes (setuid, setgid, sticky) | Limited or not displayed |
| ls -la Preview | Yes, with colored output | No |
| Visual Toggle Grid | Yes, with color coding | Basic checkboxes |
| Reverse Lookup | Yes (type octal to see breakdown) | Yes |
| File Type Options | Yes (regular, directory, symlink) | Not available |
| Common Presets | 10 preset patterns with descriptions | Limited or none |
| Ads | None | Unknown |
Why Choose Fixie?
Both chmod-calculator.com and Fixie offer free chmod calculation tools, but Fixie provides a more polished and feature-rich experience. The visual toggle grid uses color coding to distinguish read (blue), write (red), and execute (green) permissions, making it easier to understand at a glance.
Fixie includes full support for special bits (setuid, setgid, sticky bit) with clear explanations and visual toggles. You can see exactly how these special permissions affect the ls -la output in real-time. The tool also includes a file type selector (regular file, directory, symlink) which changes the first character in the ls output, helping you understand exactly what the permissions will look like on your actual system.
The live terminal preview shows both the chmod command and the ls -la output with syntax highlighting, so you can copy the exact command you need and understand what it will look like. With 10 common presets (like 755 for scripts, 600 for SSH keys, 1777 for /tmp), you can quickly set up standard permission patterns with a single click.
How to Use chmod Calculator
Step 1: Visit the chmod Calculator
Navigate to fixie.tools/chmod in your browser. No account or signup needed.
Step 2: Toggle Permissions Visually
Click the permission cells in the grid to toggle read, write, and execute for owner, group, and other. Each permission type is color-coded for clarity. For special bits, toggle the setuid, setgid, or sticky bit buttons in the Special Bits section.
Step 3: Use Reverse Lookup (Optional)
If you already have an octal code like 755 or 1777, type it in the Reverse Lookup field to instantly see the permission breakdown.
Step 4: Copy Your Command
Click the copy button next to the chmod command output. The command includes your filename and is ready to paste into your terminal.