Step 1
How to use it 1
Check the boxes to set permissions, or read the octal code.
ToolsChmod Calculator
development
Chmod Calculator
Linux permissions
How to use it
1
Examples to try
3
Frequently asked questions
4
Continue with the next step
3
Chmod CalculatorLinux permissions
How to use it
9Convert between Linux file permissions (rwx) and octal numbers (e.g., 755, 644). Visual interface for owner, group, and public permissions.
How to use it
9Convert between Linux file permissions (rwx) and octal numbers (e.g., 755, 644). Visual interface for owner, group, and public permissions.
What teams use it for
- Securing configuration files from unauthorized access
- Setting web directory permissions for uploads
- Making deployment scripts executable
- Securing database files and backups
- Auditing file permissions for vulnerabilities
- Configuring shared hosting file access
- Making shell scripts executable
- Setting log file write permissions
Examples to try
6Example 1: Start with a small input to validate the format.
Examples to try
6Example 1: Start with a small input to validate the format.
Examples to try
- Example 1: Start with a small input to validate the format.
- Example 2: Try a real-world payload to confirm the output.
- Example 3: Compare the result against your expected structure.
Common pitfalls
- Mixing formats or encodings in a single input.
- Copying output without reviewing edge cases.
- Skipping validation before sharing the result.
Frequently asked questions
4What is 777?
Frequently asked questions
4What is 777?
What is 777?
Read, write, and execute for everyone. Generally insecure.
What does 755 mean?
Owner can read/write/execute; group and others can read/execute.
Why need execute on directories?
Execute allows entering and listing a directory.
Why is 777 risky?
It grants write access to everyone.
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