Processing boundary
Input is processed only in the active browser tab's memory and is not sent to a ByteQuant server.
95
Code & file security
Unix Permission Calculator
Converts Unix permissions such as 755, 0644, or rwxr-xr-x, explains owner/group/other access, and flags world-writable or special-bit risk. It never changes server permissions.
✓ Free✓ No account✓ In-browser
Persistent storage
Input and output are not stored. The optional usage counter keeps only tool identity and count, never content.
Verification
Output comes from disclosed rules or browser APIs and needs independent review before high-impact use.
A result in three steps
- 01
Enter octal or rwx notation.
- 02
Review the conversion and access matrix.
- 03
Verify file purpose and threat model before applying changes.
When is this tool useful?
- ✓ Preparing chmod commands
- ✓ Reviewing deployment file permissions
- ✓ Learning Linux permission notation
Important limitation
Automated output is a preliminary assessment. Do not use it alone for legal, financial, medical, or security-critical decisions.
LEARN THE WORKFLOW
Guides for this tool
Local Security Pre-Checks for .env, SQL, and Unix Permissions
Surface common configuration, query, and permission risks before release without exposing secrets.
Read guide →ABOUT THIS TOOL
Frequently asked questions
Does this tool send input to a server?+
No. Processing runs in this browser tab. Data leaves the page only when you choose to copy or download the result.
Is the result definitive?+
The tool produces consistent output from disclosed rules and browser APIs, but context, data quality, and method limitations can affect it. Verify high-impact decisions.
Is input saved?+
No. Tool input is not persisted. With consent, only tool identity and usage count may be kept on this device for personal shortcuts.