Linux Permission Calculator

• Free online Linux file-permission calculator. Convert both ways between symbolic permissions (e.g. rwxr-xr--) and numeric permissions (e.g. 755), and generate the matching chmod command in real time.
• Supports special permissions — SetUID, SetGID and the Sticky Bit. Tick read/write/execute for owner, group and others individually, and view the full permission breakdown.

1. Open the tool page — no download or installation needed.
2. Pick a mode (symbolic → numeric, or numeric → symbolic), enter the permission and click Convert. You can also tick permissions directly or use a common preset such as 755, 700 or 644.
3. The result area shows the symbolic and numeric forms, the permission details and the chmod command. Click Copy to grab it in one click.

• This tool is completely free and requires no sign-up.
• Everything runs locally in your browser — your data never leaves your device.

Free online Linux file permission calculation tool, supports mutual conversion between symbolic and numeric permissions, supports special permissions like SetUID, SetGID, Sticky Bit, displays chmod command in real time.

Open the tool page — no download or installation needed. Pick a mode (symbolic → numeric, or numeric → symbolic), enter the permission and click Convert. You can also tick permissions directly or use a common preset such as 755, 700 or 644. The result area shows the symbolic and numeric forms, the permission details and the chmod command. Click Copy to grab it in one click.

This tool is completely free and requires no sign-up. Everything runs locally in your browser — your data never leaves your device.

Yes, Linux Permission Calculator is completely free. No download or installation required — it runs right in your browser.