The 9 best tools to prevent your computer from sleeping or locking

By: Milan Stanojevic
8 minute read

By default your Windows 10 PC will lock itself or go to Sleep Mode in order to preserve power. Automatic locking can be useful because it will prevent other users from accessing your computer if you’re away. Even though these features are useful, they can sometimes be tedious, so today we’re going to show you the best tools to use to prevent computer from sleeping or locking.

What are the best tools to prevent computer from sleeping or locking?

If you’re a computer administrator you can easily change power settings and stop your computer from going to Sleep Mode or from locking. However, if you’re just a regular user and you don’t have administrator privileges, you might have to look for some third-party solutions. Most tools on our list are portable, so they can work on any PC even if you don’t have administrator privileges.

NoSleep

NoSleep is a small and simple application that will prevent your PC from going to sleep. This is a portable application, so you can use it without installing it on your PC. Simply start the application and it will add a small icon in the Taskbar, signalizing that it’s enabled. The application is rather simple, and it will move your mouse left and right every 30 seconds thus preventing your PC from sleeping or locking.

The application doesn’t have any configuration options, and you just need to start it and your PC will remain active and unlocked as long as the application is running. Since this application isn’t installed on your PC, you have to start it manually every time in order to use it.

NoSleep is a simple, small and useful application if you want to prevent your computer from locking or going to sleep. The application is incredibly simple to use, so be sure that you download it.

Caffeine

This is another portable app that doesn’t require you to install it in order to use it. Caffeine will simulate the pressing of F15 key on your keyboard every minute thus keeping your PC awake and running. Since F15 key isn’t available on your keyboard, this application won’t interfere with your work or open applications in any way.

Once you start Caffeine it will be located in the bottom right of your screen. The application allows you to configure it, and you can set for how long you wish to keep the application enabled or disabled. This is great if you want your PC to go automatically to sleep after some time but you don’t want to disable the application completely.

Caffeine also supports various command line options and you can change the time interval of the pressed key, disable Taskbar icon and so much more. Caffeine is a simple app that will prevent your PC from going to sleep or automatically locking, and it will be perfect for basic users.

Coffee

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Another tool that will keep your PC awake is Coffee. This tool checks your network connection and as long as you’re downloading or uploading something your PC will stay awake. You can customize download or upload threshold so you PC can go to sleep even if your PC is downloading files in the background. You can also set thresholds for different network adapters on your PC.

This tool is great if you’re downloading files, but unlike other tools on our list, it will not keep your PC awake by simulating a keyboard input. If you want to keep your PC awake using this tool, we suggest that you try experimenting with different threshold values. If you want, you can set this tool to start automatically with Windows or check for available sleep blockers.

This is a simple application that will prevent your PC from going to sleep, and its only flaw is its reliance on network connection in order to work. Just like all other tools on our list, this is also a portable application and it doesn’t require an installation in order to run.

Coffee FF

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Coffee FF is basically an improved version of the previous tool. The tools share the same user interface and features. However, Coffee FF enhances the previous application by adding some missing features.

Using this app you can prevent your PC from sleeping by setting a specific network threshold. You can also set delay to remove sleep block or simulate key press in order to keep your PC awake. If you want, you can even block sleep for predefined number of minutes. Another option that we didn’t expect to see is the ability to prevent display standby which can be rather useful. Lastly, you can even keep your PC awake as long as certain applications are running.

Coffee FF is a great tool and it brings features that its predecessor lacks. Portable version of the tool is available, but you can install it on your PC if you want.

Insomnia

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This is another portable application that will prevent your PC from going to sleep. The application doesn’t require installation, so you can run it on any PC without problems. To prevent your PC from locking or going to sleep, just start the Insomnia application.

When the application starts, you’ll see its main window. The application doesn’t offer any advanced features, and you can’t configure the application in any way. As long as Insomnia is running your PC won’t go to sleep or lock itself. Of course, you can a lock your PC manually if you want. Unlike other applications, Insomnia doesn’t simulate keyboard input and instead it uses SetThreadExecutionState API in order to prevent sleep.

Insomnia is a rather simple application, but despite its simplicity and lack of advanced options it will perfect for most basic users.

Caffeinated

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Caffeinated is a portable application and just like all other portable applications, it doesn’t need to be installed in order to run. Once you start Caffeinated it will show you its welcome screen. From there you can set this application to start along with Windows or to automatically be active as soon as you turn it on. If you want, you can also set default duration for Caffeinated app.

The application will be located in the bottom right corner and you can quickly disable it or enable it by clicking its icon. In addition, you can set how long will the application keep your PC awake.

Caffeinated is a simple but powerful application. It doesn’t have any advanced features, but it offers straightforward and simple user interface. Regarding requirements, Caffeinated requires .NET Framework 3.5 in order to work. This application is simple, portable, and it can start along with Windows, so it will be perfect for all users.

Noise

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Another lightweight tool that can prevent your PC from going to sleep is Noise. This tool is portable just like all other tools on our list. Once you start this tool it will send a random key stroke to its input field every 10 seconds thus keeping your PC awake.

We have to say that this is a somewhat primitive solution, but it should prevent your PC from going to sleep. Noise doesn’t have any major flaws, but it doesn’t offer any advanced features, and it doesn’t have a modern user interface. If you want more modern solution to keep your PC awake, we suggest that you try a different application.

Don’t Sleep

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Don’t Sleep is probably one of the most advanced tools on our list. This is a portable application, so there’s no need to install it in order to run it. The application allows you to choose what type of actions you want to block. You can block Standby / Hybrid Sleep / Hibernation, Shutdown, Log-Off and Screensaver / Monitor standby . You can block all options, or you can select them individually from the list.

The application also comes with a timer, and you can schedule a specific time or date for a certain action. For example, you can set the application to turn itself off, to stop blocking or to turn off your PC. There are total 7 actions that you can schedule, which is enough for most users. The application allows you to quickly access many system tools such as Task Manager, Power Options, Screensaver settings, etc. You can even turn off your PC or monitor right from this application.

Don’t Sleep also supports Mini-HTTP feature that allows you to control the application using your web browser. By doing so, you can configure this application from any device on your network. Mini-HTTP offers the most basic options, but the feature can be useful to some users.

You can also set this application to start along with Windows or you can change how the application behaves once your computer wakes up from Sleep Mode. Don’t Sleep is powerful but relatively simple application that offers advanced features. If you want to prevent your PC from going to sleep, this application is just what you need.

Auto Mouse Mover

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Auto Mouse Mover is a simple application designed to move your mouse at specified intervals. By moving your mouse, your PC won’t go to the Sleep Mode and it won’t lock itself. When you start this tool you can choose when do you want the tool to run. For example, you can set the tool to run only if you press a specific shortcut. If you want, you can set the mouse to move as soon as the application starts or after certain time of inactivity.

If needed, you can configure inactivity timer and mouse movement as well. This tool also allows you to change the look of its Taskbar icon, so you can change it if you want to. Lastly, you can set this tool to start automatically with Windows so you won’t have to start it manually every time.

Preventing computer from sleeping or locking is possible even if you don’t have administrator privileges on your PC. Most tools on our list are portable and you can run them on any PC without installation. If you’re looking for the best tool to keep your PC awake, we recommend Coffee FF or Don’t Sleep, but you’re more than welcome to try other tools as well.

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