RSS Feeds

Receive a regular RSS feed from our latest, most popular and recommended downloads

Latest downloads feed

Get a regular RSS from our most latest downloads

Most popular downloads feed

Get a regular RSS from our most popular downloads

Recommended downloads feed

Get a regular RSS from our recommended downloads


Subscribe to either one of our two newsletters for regular updates and information

Downloads newsletter

This is a weekly newsletter with download news, updates and other information

This is a monthly newsletter with software store information, offers and deals

Caffeine 1.6

Simulate keypresses to prevent your PC sleeping

by Mike Williams

Our Rating:
Your Rating:
Login to rate
Based on 0 ratings
License: Freeware
Operating Systems: Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Phone, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP
Languages: English
Software Cost: Free
Date Updated: 27 January 2014
Watchlist: Add download to my watchlist
Downloads To Date: 656
Developer: ZHorn Software
RSS News Feed:
Back in stock! Buy Malwarebytes Anti-Malware Premium v2 with a 1-PC LIFETIME license, only $27.95, from
Caffeine 1.6
Simulate keypresses to prevent your PC sleeping

Caffeine is a portable free tool which can help to prevent your screensaver activating, or your PC going to sleep. Just launch the program and it simulates a keypress every 59 seconds, so your machine thinks you're still working at the keyboard, and won't shut down.

Caffeine adds an icon to the system tray where you can control how it works. Right-click and you're able to turn the program on for only an hour, for example. It will then keep your system awake for that time, convenient if you're not working at the keyboard but need it to remain active (you're giving a presentation, perhaps), before returning to normal.

The program provides several command line switches to control how it works. There are options to choose which keypress is simulated, for instance, and how often it's repeated. You can choose whether it's active on launch, or how long it will be active. You get to decide whether Caffeine works from your system tray, or a taskbar button, and there's even an option to prevent sleep, but allow the screensaver to start.

Conveniently, all this comes packaged in a single tiny executable (a mere 40KB) which, the author claims, runs on anything from Windows 98 upwards.


An effective way to gain a little extra control over your PC power settings.

Your Comments & Opinion
Related Download Articles
Don't Sleep

Don't Sleep 3.81


Temporarily prevent Windows from hibernating, sleeping, shutting down or restarting

Sleep Preventer 1.3

Sleep Preventer 1.3


Temporarily prevent your PC from sleeping or hibernating


Granola 3.3.3


Help to reduce your carbon footprint while saving money

MCE Standby Tool

MCE Standby Tool 0.9


Take control of your computer’s low-power states

Other Download Articles From This Category
apps tracker

apps tracker

Open Source

Record which apps are used on your PC, and when

Terra Incognita

Terra Incognita 2.39

Open Source

A map viewer/ converter, waypoint manager, more

Tablacus Explorer

Tablacus Explorer 15.11.26

Open Source

Browse your hard drive with this tabbed file manager


MMCSnapInsView 1.0


Discover all the MMC snap-ins on your system

From Softwarecrew

Please wait while my feed loads

See more posts...

Our Price: $39.95
RRP: $89.95
Saving 56%
Buy Now
Offer Ends In:

Spotlight: Free Full Software

WhatsApp Messenger 2.12.11

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

Version 2.12.11 brings:

• Links that you share or receive will now include a rich preview. When sending a link, you have the option to not include a rich preview.
• Additional 3D Touch features: You can now quickly Peek and Pop chats.
• Redesigned Settings tab. 
• You can now view all your starred messages across all your chats in Settings — Starred Messages.