rwx

Chmod Calculator

Calculate Unix file permissions. Convert between symbolic (rwxr-xr-x) and numeric (755) chmod notation. Free chmod permission calculator.

Live·100% in your browser — no upload

Numeric

755

Symbolic

rwxr-xr-x

chmod 755 filename

chmod u=rwx,g=rx,o=rx filename

Enter Numeric Value

Common Permissions

Free Chmod Calculator Online

Calculate Unix file permissions with an interactive checkbox grid. Convert between numeric (octal) and symbolic chmod notation. Generate ready-to-use chmod commands.

Understanding Permissions

Read (4) - View file contents or list directory
Write (2) - Modify file or add/remove files in directory
Execute (1) - Run file as program or enter directory

Permission Groups

Owner (u) - the file creator. Group (g) - users in the file's group. Others (o) - everyone else.

Related tools

B32

Base32 Encoder / Decoder

Live

Encode text to Base32 (RFC 4648) and decode Base32 to text, with UTF-8 support. All in the browser.

developer

B64

Base64 Encoder / Decoder

Live

Encode text to Base64 or decode Base64 to text online. Supports UTF-8. Free Base64 converter tool.

developer

💻

Binary Calculator

Live

Perform arithmetic on binary numbers: add, subtract, multiply, divide. Convert results between bases.

developer

⏰

Cron Expression Builder

Live

Build and understand cron expressions visually. See next run times and get human-readable descriptions. Free cron job scheduler tool.

developer