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Free App Lock

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Lock any executable files or programs on your computer and protect them from non-authorized execution.


Free App Lock is convenient security software to lock the executable programs in your computer to prevent others using them without your authorization or peeping into your privacy. It can lock programs like IE, Firefox, Skype, Outlook, AOL, AIM, MSN computer games or any other programs, encrypting them with customized password. You can specify your own message to display if anyone attempts to launch the locked programs. It also allows you to easily unlock the programs.

This free application locker can run on all Windows systems. You just pick the programs you want to encrypt, enter the password, confirm it and then encrypt! There are 2 encryption modes provided: Speed priority mode & Security priority mode. What's more, Free App Lock provides password protection for itself. You don't even have to first run Free App Lock because there is an option to add encryption to your right-click context menu.

Lock EXE Files

Lock EXE Files

Free App Lock is an innovative application encryptor, which allows you to lock any executable programs with password from non-authorized execution to block other clients from modifying the variables stored in the Application object to protect your privacy. Now, there is no need to worry about others will use your tax preparation software, personal finance or other programs and so on.

How to Encrypt Programs?

How to Decrypt Programs?

Password Protection

Password Protection

This free application lock not only helps lock other executable programs but also itself. It enables you to add password for this software self so that there's no other way to run or uninstall it if you have not the password. Failure to provide the correct password prevents the program from fully launching.

How to Protect Free App Lock Itself?

Optional Encryption Modes

Optional Encryption Modes

Free App Lock not only provides you with application privacy protection but also is integrated with two encryption modes for your choice: Speed priority mode and Security priority mode.

How to Set Encryption Mode?

Backup Files

Backup Files

Free App Lock's backup function helps save a spare application in case any error occurs or you forget the password you set for the application and can't unlock the encrypted one.

Launch from Right-click Menu

Launch from Right-click Menu

Trying to open Free App Lock software again and again when you want to use it may be a troublesome process. Don't worry. The freeware allows you to add the item "Encrypt with Free App Lock" into Right-click menu so that it becomes very convenient to encrypt applications.

How to Encrypt Programs on Right-click?

Why should I choose Free App Lock

DotFree Application Locker

Free App Lock is totally free. You can use and download this full-functional application lock software without spending a penny or register. And anyone who has installed it can enjoy free update and free technical support in lifetime!

DotPrevent Game Addiction

Are your kids at risk of some computer & online game addiction and want to control them? This free application lock helps lock any EXE programs of computer games & online games like World of War craft, League of Legends, Warhammer, EverQuest, etc. to protect your kids from game addiction.

DotLock Media Players & Web Browsers

This program encrypter has the ability to lock your Media Players to prevent the audio & video files you played from peeking, and password protect your web browsers to prevent access to the internet for unauthorized persons to get your privacy, important bank password and so on through browser history, cookies, cache and so on.

DotLock Chat Tools

Free App Lock is a computer security protection and is great for keeping people out of your identity theft or fraud by some chat tools. It can lock Skype, Contacts, Gmail, Facebook, MSN, WeChat and any app you choose, with abundant options, protecting your privacy. Now, no one can snoop into your private chat message.

DotProtect Important Info from Kids

This free application locker brings you a total solution to protect secret information from kids by locking various files. You can lock your important bank, programming or office applications so that the kids can't open them and make them in a mess.

DotEase of Use

Free App Lock is not only able to work efficiently but quite easy to use. By following the brief instructions on the uncluttered interface you can lock any executable program you want with no prior experience required.

What are the system requirements?



Intel Pentium 3 500MHz or equivalent processor

At least 256 MB RAM

50 MB free hard disk space

Graphics mode 800x600, 16-bit color

Internet Explorer 6

Microsoft Windows Vista/7/8/8.1/10


Intel Pentium 4 1GHz or equivalent processor

512 MB RAM

Minimum 100 MB free hard disk space

Graphics mode 1024x768 true color (highest 32-bit)

Internet Explorer 7

Microsoft Windows Vista/7/8/8.1/10

Free App Lock


Free App Lock
Free App Lock

Editor's Review

Tucows - Five Cows
This free application locker manages to instantly and easily lock access to applications in the computer. Also it provides users with double safeguard by encrypting the lock software itself.

Core Download - Five Star Rating
A great piece of application lock software to lock any executable program, efficiently preventing others from starting programs without your permission.


Encrypt Programs

Decrypt Programs

Set Encryption Mode

Encrypt Programs on Right-click

Protect Free App Lock Itself

Did you know?
Free App Lock helps lock any executable programs to protect your privacy. 100% Freeware.

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