App To Encrypt A Folder In Mac

For that, press Command + Space and type Disk Utility and open the corresponding app. Therefore, click File New Image Image from Folder. Choose the folder that you want to encrypt and click the Choose button. By default, there would be no encryption.

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  3. How To Encrypt A Folder
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5 1 like 15,254 views Last modified Dec 1, 2015 6:34 AM

Lots of users save confidential information on their Macs. Private data needs to be protected and secured to prevent unwanted access and identity theft. Fortunately, Mac users have lot of possible encryption options nowadays (built in Mac OS tools and 3rd party encryption apps as well).

Built Mac OS Disk Utility tool allows to protect your private files and create encrypted folder disk image. If user does not want to ecrypt the entire disk and enable filevault protection he/she may encrypt certain folder on the hard drive.

1. Open Disk Utility tool. In order to do this just click on Finder icon and select Go menu at the top. Choose Utilities from the drop down menu. In utilities folder look for Disk Utility icon (you can also press command + shift+ U and open Disk Utility in utilities folder).

2. Once you’ll open Disk Utility click on “File” menu at the top. Choose “New ” and select “Image from folder”

3. Select the folder you want to encrypt(in my case it is thunderzzz secret folder ) or create the new folder and add data containing confidential info there. Click on “Image”.

4. Type the name for encrypted disk image(in my case I call it “Encrypted disk image”) and select 128 or 256-bit encryption option. Click on “Save”.

5. Set up the password for encrypted image. Note: Save this password somewhere or write it down. In case you forget it you loose the access to all encrypted files inside the folder. This is probably the only drawback of this encryption option.

Next time you open this image double click on it. You’ll be prompted to type the password. Your files inside this disk image are protected.

There is also vast choice of third party encryption tools on the market. I have tested some of them on random basis.

Encryption Buddy

This tiny app allows user to protect and encrypt any type of files. Drag and drop the files you want to encrypt or protect with password to the application window. Create a password and click “Encrypt My Files”. It takes some time. In order to decrypt this file you should do almost the same. Easy as a pie. This app is available on the AppStore. You may find more info on developer’s website:


Encrypts and protects with password files, folders, applications and their associated files. It uses AES 128 or 256 bit encryption standard (you may use the same via Disk Utility ) There is no way to see encrypted files without MacFort app. If Mac is lost o stolen your private files remain protected. More info here:


Despite the controversial reputation of this application on this forum, I have decided to test their built-in encryptor option and it worked pretty well for me. “Data Encryptor” makes encrypted files invisible. It enables two level security mechanism. Internal password to Data Encryptor itself and the password to the encrypted item. More info here:


The simplest text editor/viewer. Open the text editor. Paste or type sensitive info there. Click on the lock and the data is encrypted. Application uses the same 256 bit AES encryption standard. Application is compaible with Mac OS and iOS as well. Available on the App Store. More info here:


Cross platform application for Windows and Mac computers. Allows to share encrypted files with friends and send them via e-mail. You can also encrypt the file and and set up the hint. Hint is useful in case you forget the password. More info here:

It is up to you to decide whether use 3rd party encryption apps or perfect Disk Utility. In my opinion, Disk Utility is all you need. 3rd party apps are good for novice users, however they use the same AES 256-bit standard available via Disk Utility. You should set up the strong and easy to remember password. Good option is to write down password hints somewhere. Remember: In case you forget the password, you no longer have the access to the items inside the encrypted folder.

Ever wanted to add an extra security layer so that you can secure your data? Your data can be sometimes accessed by anyone if your Mac computer is shared with others. You may have photos, videos, and files within folders that contain sensitive information that you don’t want others to see it. So, you can encrypt these folders and password-protect them on your Mac. Here’s how you do it.

Password protecting your files and folders is important to ensure that no one can gain access to them without your consent and password. Fortunately, your Mac offers you a built-in encryption tool that allows you to lock the folders with a password and later access them by unlocking them with the password you kept for encryption.

App To Encrypt A Folder In Mac Free

Although you have the option to use third-party encryption tools that are available on App Store, however, you can make use of the built-in password-protected folder lock feature without spending any bucks on third-party apps.

Encrypt And Password Protect A Folder On Mac

  • Hit Command + Space to open the Spotlight Light search and type Disk Utility.

You can also open Disk Utility from the Applications -> Utilities -> Disk Utility.

You will require the Disk Utility tool to encrypt and password-protect your folders on Mac. The Disk Utility will create a disk image of the folder that can be further protected with a password.

  • Now select File -> New Image -> Image from Folder from your menu bar.

Here, you can choose the folder that you want to encrypt. You can create a new folder and copy the files to keep everything in one folder.

Choose the location for the new folder image and give a name to it. You can add a color tag as well.

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You will have the option to select two different encryption methods. One is 128-bit and another is 256-bit. The 256-bit is stronger and hard to crack, however slower whereas the 128-bit is a little less secure as compared to the 256-bit encryption but faster in processing.

  • Choose your Encryption from the two options, 128-bit or 256-bit AES encryption.

When prompted, set a password for the folder and verify it. You will need to make sure you remember it otherwise your data will be locked out.

Select the Image Format. Choose Read-Only if you just want your data in read-only mode and no modifications can be made. Or you can pick the Read/Write to modify your data in case you want to make changes to it by adding or deleting files.

  • Click Save and let it process the encryption. Click Done when it finishes.

Navigate to the location where you saved your folder image and double-click on it. The folder image file will be a DMG format.


Enter your folder password to access your data. Don’t forget to click remember your password if you don’t want it to enter again and again, but don’t choose it if you are on a shared computer.

App To Encrypt A Folder In Mac Download

Your folder will be mounted and you can see it in the Finder. Once you are done, protect it again by unmounting it via right-clicking on it and select Eject.

How To Encrypt A Folder

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