How it works
Complete the job in three clear steps
- Choose permission choices.
- Set the available options and create chmod notation.
- Review the result before downloading or relying on it.
Private Lucaden developer & data tool
Unix Chmod Calculator
Build Unix owner, group, and public permissions and copy numeric or symbolic chmod notation.
Free to use Your source content is processed in this browser and is not uploaded to Lucaden.
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Important
Check the result before relying on it
Review generated output before using it in production. Formatters and converters can validate structure, but they cannot understand every application-specific rule or guarantee that transformed content has the intended meaning.
Practical details
What this Lucaden tool does
The calculator maps read, write, and execute bits to their octal and symbolic representations. It does not connect to or change any filesystem.
The original remains unchanged; Lucaden creates a separate result in browser memory.
Included capabilities
- Owner, group, and public bits
- Octal notation
- Symbolic notation
- Copy-ready command
Useful for
- Prepare deployment commands
- Learn permission bits
- Review file modes
- Document server setup
Questions
About this tool
Does this change my files?
No. It only calculates text for you to review and use separately.
Does it include setuid, setgid, and sticky bits?
This focused version covers the standard read, write, and execute bits.