Get a free online virus scan from ESET

Scan your computer for threats easily and effectively.

Run ESET Online Scanner
Online scanning

Enjoy ESET’s easy-to-use FREE scanner

Detect and remove malware on your PC with a powerful and user-friendly tool that uses the same ThreatSense® scanning technology and signatures as ESET Smart Security and ESET NOD32 Antivirus—just by using your web browser.

Online One-time Scan
Run Scanner
Optimized for Internet Explorer. Chrome and Firefox users will need to download and run a small utility file before starting scan. Need help? Click here
Unlimited 30 Day Scan
Free Download

ESET's Online Scanner features these powerful security benefits for your PC — all free!

One-click activation
Scan your PC in one simple click without having to register any contact information.

Comprehensive malware detection
Find both known and unknown viruses, worms, Trojans, spyware, phishing, and other Internet threats.

Always up-to-date
Uses the most current threat signatures and heuristic detection algorithms available from ESET's Threat Lab.

In-depth scanning
Scan archive files to find hidden malware.


Key features

Enhanced browser support
Run scans in your favorite browser, such as Internet Explorer, Safari, Firefox, Chrome, Opera, Netscape, and more.

Destination scanning
Select specific files or folders for quick scanning of suspicious objects.

Anti-stealth technology
Detect and clean hidden threats automatically from your system with ESET’s anti-rootkit technology, built on a key component of ESET's Smart Security and ESET NOD32 Antivirus programs.

Delete or quarantine infected files into a special folder, where they no longer pose a threat to your system. Quarantined files can also be restored.

System requirements

System requirements

Operating systems
Microsoft Windows 7/Vista/XP/2000/NT (32/64-bit)

Internet browsers
Firefox, Opera, Chrome, Safari and others; Internet Explorer 6 or later (with ActiveX turned on).


Disk space
Minimal 15MB, Optimal 30MB

User permissions
Administrator rights are required to run ESET Online Scanner.

Online scanner help

Need assistance with ESET Online Scanner? We’re here to help.

ActiveX controls are programs that use Microsoft's architecture for running applications through Internet Explorer. The ESET Online Scanner is implemented as an ActiveX control, which means you must first download and install it before the program can be run through the web browser. To install or uninstall the ESET Online Scanner ActiveX control, you must have Administrator privileges.



The first time you attempt to run the ESET Online Scanner, you will see a message similar to this one at the top of your web browser:



Right-click the information bar in the web browser and a popup context menu will appear. Select Install ActiveX Control from the menu to download the software for the ESET Online Scanner:



After the software has finished downloading, click the Install button to finish installation of the ActiveX control signed by ESET:

Virus removal and computer tune-up services

With priority access to the ESET Support Services team, your devices will be running like new in no time.

Get started

Get even more protection

For truly effective protection, a comprehensive antimalware solution is necessary to provide ongoing prevention — ESET NOD32 Antivirus and ESET Smart Security deliver multiple layers of protection and proactively stop computer threats in real time.

ESET NOD32 Antivirus

Basic antivirus

ESET NOD32 Antivirus

Stay protected from the latest malware threats with award-winning antivirus plus Anti-Phishing and social media scanner.

Learn More
ESET Smart Security

Advanced security

ESET Smart Security

Add layers of security to your PC with an all-in-one security suite including Anti-Theft, parental control and personal firewall.

Learn More
ESET Multi- Device Security

Multi-OS security

ESET Multi-Device Security

Enjoy simple and convenient protection for yourself and your family on Windows and Mac computers and Android smartphones and tablets.

Learn More

Special offer from our partners