Easiest Way to Password Protect (Lock) Folder on Mac

Thankfully, Apple has included a utility in macOS that lets you password protect your important folders. Here’s how you can do so!

Admit it, there is always some data which you never want to be seen by someone else. While there are many paid utilities to hide or password protect it on Mac, why spent $ on them when you can do so for free!

Password Protected Folder on Mac

This tutorial is applicable for following macOS/OS X versions:

  • macOS 10.15 Big Sur
  • macOS 10.15 Catalina
  • macOS 10.14 Mojave
  • macOS 10.13 High Sierra
  • macOS 10.12 Sierra
  • OS X 10.11 El Capitan
  • OS X 10.10 Yosemite
  • OS X 10.09 Mavericks
  • OS X 10.08 Mountain Lion
  • OS X 10.07 Lion
  • OS X 10.06 Snow Leopard

How to Lock Folder on Mac

Following are the steps for protecting your folders with password on Mac, let’s get down to it:

Step 1: Press Command + Shift + A at the same time, it will open the Applications folder.

Step 2: Look for Utilities folder in the this folder.

Step 3: Inside the Utilities folder, open Disk Utility.

Step 4: Click on File and follow this path:

File/ New Image/ Image from Folder

Step 5: Inside this location, open the folder that you want to lock.

Step 6: Now select read/write in the Image Format Option.

Step 7: In the Encryption menu, select 128-bit AES encryption.

Step 8: A program prompt will require your password twice, enter to proceed.

Step 9: You can name the locked folder as per your choice. After entering the name, Save and let it finish. Once it’s finished, click on Done to finish the process.

Now your folder has been turned into a password protected folder. This folder is the copy of the original folder, so you can delete the original folder if you like. But beware, do not ever delete the file with .dmg extension.

Hope this guide helps you in locking a folder on mac.