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Unix permissions calculator
Calculate and convert Unix and Linux file permissions. Convert 755 to rwxr-xr-x, manage special bits and copy the matching chmod command.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
Convert an existing value
Permissions
| Read | Write | Execute | |
|---|---|---|---|
| Owner | |||
| Group | |||
| Others |
Special permissions
Results
Octal
Symbolic
chmod command
Why use this tool?
Convert Unix and Linux file permissions between octal notation, such as 755, and symbolic notation, such as rwxr-xr-x. All calculations stay in your browser.
Smart processing
Generate, convert, or validate technical data with purpose-built controls.
Supported formats
Technical formats and syntaxes suited to each generator, converter, or validator.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Guide
How to use this tool
- 1
Choose an input mode
Enter an octal or symbolic value, or use the permission checkboxes directly.
- 2
Adjust permissions
Set access for the owner, group and other users.
- 3
Copy the result
Copy the octal value, symbolic value or chmod command.
Tips and best practices
- Read is worth 4, write is worth 2 and execute is worth 1.
- The setuid, setgid and sticky special bits are supported with a fourth octal digit.
Frequently asked questions
What does 755 mean?
The owner has full access, while the group and others can read and execute.
Are special permissions supported?
Yes. You can enable setuid, setgid and the sticky bit.
Is my data uploaded?
No. Conversion runs locally in your browser.
Was this tool useful?
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