Let’s admit that we store many important files and folders on our Android smartphones. Since Android is the most popular mobile operating system, it’s also a prime target of hackers. Hackers are trying their best to crack into the platform. This is why security researchers recommend security apps.

When we hear about security apps, we always think about Antivirus tools. Antivirus apps on Android are much-needed but can’t provide complete protection. What about the files and folders that you have stored on your device? Have you taken any steps to protect them? Usually, we don’t care about important files and folders, but they are the first thing hackers target.

10 Best Free Folder Lock Apps For Android

This article will share some of the best file and folder lockers for Android devices. These file lockers will allow you to password-protect any essential files or folders. So, let’s explore the list of the best folder lock apps for Android.

1. Folder Lock

Folder Lock

Folder Lock is one of the top-rated Android security apps available on the Google Play Store. It is an app that password-protects your files, photos, videos, documents, contacts, and other files.

With the premium version of Folder Lock, you also get the cloud backup feature to secure your important files and folders. Apart from that, Folder Lock also has a WiFi file transfer tool that lets you transfer files and folders between Android devices.

2. Smart Hide Calculator

Smart Hide Calculator

It is one of the best security tools you would love to use. It’s a full-fledged calculator app that has a little twist. Smart Hide Calculator offers a vault that can be opened when you enter the password.

This way, everyone will think of the Smart Hide Calculator as a simple calculator app. The app doesn’t need a rooted Android device, and it works fine on Android version 4.2 and above.

3. FileSafe


FileSafe is not precisely a folder lock app; instead, it’s a full-fledged file manager app with file/folder hiding capabilities. Since it’s a full-fledged file manager app, FileSafe replaces your phone’s native file manager app and lets you lock your important files with a password or PIN code.

Apart from file management and file locking features, FileSafe also has a built-in photo viewer and media player.

4. Secure Folder

Secure Folder

This folder lock app from Samsung is meant to protect your important files and folders. Secure folder leverages the defense-grade Samsung Knox security platform to protect your essential files from prying eyes.

The app’s only downside is that it is meant to work only on Samsung smartphones. So, if you don’t have a Samsung phone, it’s best to skip this app.

5. File locker

File locker

If you are searching for the easiest way to create a secure location on your device to store and protect your most important files and folders, then a File locker might be the best pick.

With File Locker, you can password-protect your files, including photos, videos, documents, contacts, notes, and audio recordings.

6. Norton App Lock

Norton App Lock

Like every other app, Norton App Lock allows users to add PIN, Password, or pattern lock screen security to protect and lock apps.

Apart from just locking the apps, Norton App Lock can also be used to password-protect folders. Therefore, Norton App Lock is another best free folder lock app on your Android smartphone.

7. App Lock

App Lock

App Lock is a privacy protection app for Android. The app protects your privacy with patterns, fingerprints, password lock, and more.

You can’t lock folders with App Lock, but you can hide your photos and videos, lock all apps, and more. It also offers a private browser that lets you browse incognito without leaving any traces.

8. File Hide Expert

File Hide Expert

File Hide Expert is basically a privacy protection app for Android that you can get from the Google Play Store. The app can be used to hide any number of files & folders stored on your device within seconds.

You can hide photos, videos, or any other file type. The app also supports hiding the entire folder. What’s more useful is that it also allows you to password-protect the app to ensure no one ever finds your hidden files & folders.

9. Lock my Folder

Lock my Folder

Lock my Folder is an Android app that lets you lock and hide your private & important folders. This free folder lock app for Android provides you with many features.

With this app, you can lock unlimited folders on your Android with a password/PIN. The folders can have photos, videos, audio, documents, or other files.

It also has a feature that captures a photo of the intruder trying to access the locked folders with the wrong password.

10. My Folder

My Folder

My Folder isn’t a very popular app, but it’s still one of the best folder locker apps for Android you can use today.

With My Folder, you can easily secure different files stored on your Android smartphone. It also supports locking and hiding entire folders as well.

The only drawback of My Folder is the ads. The ads may prevent you from accessing your locked folders and are too annoying.

So, these are the best Android apps to lock your files and folders. In addition, these apps will help you password-protect any files and folders stored on your device. If you know of other apps like these, let us know in the comment box below. I hope this article helped you! Please share it with your friends also.


  1. I am considering one of the apps, but a little criticism is due for this article:

    1) Most of the apps here have a generic name and when you type them into the Google Play store its not obvious which app is the one that you mention in the article. In the future, please include the name of the maker of the app.

    2) We need to make it a habit to say that “Free” also means “free of ads.” Several of the apps mentioned here have ads. I am trying to protect information and the last thing I need is an app downloading ads.

    But since I did find a non-ad based app here, I want to give my thanks to Amarnath Chakraborty.


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