Comprehensive real-time protection

Comprehensive real-time protection

Clearsight Antivirus’ real-time protection module helps you in your fight against malware / spyware

Outstanding performance and effectiveness

Outstanding performance and effectiveness

Our engine uses behavioural (heuristic) analysis to detect harmful programs

Easy-to-use and light on system resources

Easy-to-use and light on system resources

A new patent pending design makes our antivirus’ memory footprint incredibly small

Free for you and your company

Yes, it’s true, Clearsight Antivirus is free for you and your business!

Clearsight Antivirus Lite for Home

Antivirus software can be very hard to use and it often slows down your computer and seems to be built by engineers for engineers. We designed Clearsight Antivirus to be the opposite: easy to use, extremely fast and it will never slow down your computer.


Features and Requirements Download Clearsight Now

Clearsight for Home FREE
Clearsight for Business FREE

Clearsight Antivirus Free for Business

Although we are not pioneers of business–grade antivirus protection software, we truly believe we can still offer businesses a great, light-weight, yet effective internet security software at a cost every business can afford – FREE!


Learn more about the features Clearsight Antivirus Free has or how low the system requirements are!

Clearsight Antivirus Premium

Clearsight Antivirus Premium is the next step to more advanced protection and security which includes all the features of our free essential antivirus plus:

  • Full scheduled scanning and control over your antivirus
  • Zero-hour protection against viruses from the minute they are released
  • Multiple engines for improved detection results
  • Detection and deletion of removable device infections
  • Silent / Game mode to suppress notifications
  • SurfGuard protection against malicious websites
  • Free premium technical support for the whole period of subscription
Clearsight Antivirus Premium

VB100 Award DownloadsArea 5-Star Award Downloads4a 5-Star Award AV-Comparatives award for Emsisoft's Engine

About Clearsight

A little background of who we are and what are our values and mission

Clearsight Antivirus was founded in 2010 by a group of people with a long background in the software security industry. Our staff have used the experienced gained in other antivirus companies to produce our own unique solutions.

Most users want software security products that keep their computer safe and preferably something they do not even notice until it is needed.

Software piracy is a growing concern for all companies, including us. That is why we wanted to make it simple. Clearsight Antivirus Free, is Free. You download it and you use it. We do not have a hidden agenda there. However if you like the software and you want to support us in our mission to provide you with the best software possible at a price you are comfortable paying, then please consider upgrading to the Premium version.

Contact Clearsight

If you have any inquiries regarding the solutions, products and services we’re offering or you’d like
to leave a feedback, please do not hesitate to contact us!

Key features of Clearsight Antivirus Free


Clearsight Antivirus Free will provide you with essential real-time protection against the latest virus threats. If you like to have more protection features, we advise you to upgrade to our all-inclusive premium version.

  • Real-time protection
    Detects and prevents your computer from being infected
  • Reliable antivirus and anti-spyware engine
    Stops all known viruses and malware
  • Daily updates
    Automatic daily updates to keep your protection current

  • Removable device infection detection
    Detects infected USBs, memory cards, portable harddisks etc.
  • Simplified graphical user interface
    The easy-to-use interface is perfect for every user
  • Light on system resources
    A new patent pending design makes our antivirus’ memory footprint incredibly small

Clearsight Antivirus System Requirements


We can promise you that you won’t notice Clearsight Antivirus on your modern machines! Still, if your curiousity prevails, please find them below:

Of course, the best way to know is by downloading it. After all, it’s free.