Linux Permissions Calculator

Calculate Linux file permissions visually. Convert between symbolic (rwxr-xr-x) and octal (755) notation. Generate chmod commands instantly. Free, no signup.

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Visualize and calculate Linux file permissions instantly. Toggle read, write, and execute permissions for owner, group, and others to generate both symbolic and octal notation. Perfect for setting correct chmod values without memorizing permission codes.

How it works

  1. 1Select owner, group, and other permissions using visual toggles
  2. 2View real-time conversion between symbolic and octal formats
  3. 3Copy the generated chmod command to apply permissions
  4. 4Explore special bits like setuid, setgid, and sticky bit

Who uses this tool

  • ✓System administrators securing web server file permissions
  • ✓Developers configuring deployment scripts and shell access rights
  • ✓Linux learners understanding permission notation visually
  • ✓DevOps engineers automating infrastructure permission setup
  • ✓Security professionals auditing and fixing file access controls

Frequently Asked Questions

How do I use Linux Permissions Calculator?
Toggle the read/write/execute checkboxes for owner, group, and others. The octal value and chmod command update instantly below.
Is Linux Permissions Calculator free?
Yes, Linux Permissions Calculator on ToolPix is 100% free with no signup or installation required.
Is my data safe?
All calculations happen in your browser, no data is sent to any server.
What does chmod 755 mean?
7 (rwx) for owner — full permissions. 5 (r-x) for group — read and execute. 5 (r-x) for others — read and execute. Common for directories and executables.
What is the difference between 644 and 755?
644 (rw-r--r--) is for files — owner can read/write, everyone else reads only. 755 (rwxr-xr-x) is for executables and directories — owner has full access, others can read and execute.

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