Free Online Virus Scanner and Anti-Malware Removal Software

ESET’s free online scanner detects and fixes viruses, malware, ransomware, worms and more. Our virus scanner is the quickest and easiest way to identify vulnerabilities and potential infections and remove these threats from your device. This one-time scan runs seamlessly alongside any installed antivirus software with no installation or commitment required – find out more below.

Free virus scan 
with ESET's Online Scanner

  • One-time scan to remove malware and threats from your computer for FREE
  • 24/7 protection against all threats, including ransomware, malware and phishing scams
  • Continually tests your router for vulnerabilities
  • No commitment – try 30 days for free 

The free ESET Malware Scanner offers multiple benefits

If you’re looking for anti-malware software, you’re in the right place.
Our online scanner offers you free malware removal.

The smart way to test your antivirus

Easy-to-use tool that can
run alongside any existing
antivirus software

malware detection

Scan and remove malware including viruses, Trojans, spyware, phishing and other internet threats

and easy-to-use tool

No commitment, no registration – completely free one-time scan

Periodic scanning
of your device

Regular and automatic monthly check for infections and suspicious applications

Award-winning anti-malware
protection, for free

Our malware protection and antivirus scanner offers award winning protection. See why ESET wins awards from the most respected bodies and publications.

Malware protection for macOS and Android devices, not just PC

ESET offers more than just malware protection and antivirus for PCs. We offer detection, protection and removal for Macs and mobile devices too. Our award-winning cybersecurity software has been designed to protect you and your devices from both existing and new threats.

Robust antivirus for macOS to help protect your Macbook. We offer real-time protection that uses machine learning to keep your Mac safe.

Your mobile needs protection too, whether you use iOS or Android. Unlock antivirus for mobile and start protecting your smart devices.

Get ESET Online Scanner - the best free malware removal tool

One scan to remove all threats for FREE

ESET Online Scanner – System requirements

Supported operating systems:
Microsoft Windows 10/8.1/8/7

Disk space:
350MB (minimum), 400MB (optimum)


Choose language version

Configure download

Filename: | File size: | Version:

Free Malware Removal & Scanning FAQs

How can I scan for malware?

The best way to scan for malware is to already have antivirus software installed. This will run automated scans regularly. If you don’t have one, then download our free scanner and follow the instructions to scan your system.

How can I remove malware?

When you run a scan, our free malware scanner software will isolate and remove any malware it discovers. You will receive an alert.

Learn more about malware.

Does Windows Defender scan and remove malware?

Windows Defender only offers basic protection from known malware. You’ll need a more comprehensive scan to protect your computer properly.

Do I need a scanner for Mac?

Macs are no longer as risk-free as they used to be. Their built-in protections do help, but you still need to use a malware scanner and removal tool to offer maximum protection. Read more about the importance of antivirus for macOS.

Why do I need a malware scanner? Isn’t my current protection enough?

It’s always recommended to scan your system with a new malware scanner, even if you have your own protection already installed. If you do have cybersecurity software installed, and you think you have a malware problem, then your protection has missed it. Installing a new malware scanner will allow you to discover whether you do.