ESET Online Scanner

Scan your Windows computer for malware for free with the ESET Online Scanner! Free online virus scanner checks for any type of virus and helps you remove it.

Remove any virus without installing antivirus software! One-time scan to remove malware and threats from your computer for FREE!



Full protection with ESET Internet Security!

• Real-time, 24/7 continuous protection
• Detects and removes threats in the background
• No commitment – try 30 days for free

ESET Online Scanner offers a one-time free scanning tool that allows you to detect any potential issues on your system. While future scans or problem fixes may require payment, the software does provide a free trial for thirty days after the initial scan.

It can be used alongside existing antivirus programs and is capable of deeply scrutinizing your system for viruses and quickly removing hazardous files.

However, it does not provide continuous protection against harmful components, so regular one-time scans are recommended. The software is easy to deploy as it is web-based and does not require installation.

Users can customize the scan by selecting the components to include and have the option to enable or disable the detection of potentially unwanted applications. Advanced options can be accessed to uncover unsafe apps, scan archives, enable Anti-Stealth technology, and clean threats automatically.

Although not as powerful as paid antivirus software like ESET NOD32 AV, ESET Online Scanner offers more frequent updates to its virus and malware library compared to many free online checkers, making it a sufficient option.

Features and Highlights

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

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

Runs from your favorite browser
Easily launch scans from Chrome, Firefox, Internet Explorer, Edge, or Opera.

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

What’s New

• Improved Usability: Enhanced overall ease of use for a smoother scanning experience
• Expanded Scan Coverage: Now scans autostart locations and boot sectors for deeper system analysis
• Advanced Malware Detection: Identifies and removes threats hidden within the system registry
• Restart & Rescan Option: Enables removal of stubborn malware that requires a system restart
• No Admin Required: Scans can be performed without administrator privileges for greater accessibility

FAQs

What is ESET Online Scanner used for?
ESET Online Scanner is a one-time, on-demand antivirus tool that scans your computer for malware without requiring full installation. It’s commonly used as a second opinion alongside an existing antivirus.

Does ESET Online Scanner replace a full antivirus?
No. It is not a real-time protection tool. It only scans and removes threats when you run it manually, so it should be used in addition to, not instead of, a full antivirus solution.

Is ESET Online Scanner still useful in 2026?
Yes. In 2026, it remains a reliable tool for quick malware checks and cleanup, especially when you suspect an infection or want to verify your system with a trusted secondary scanner.

Pricing

ESET Online Scanner – Free

• One-time malware scan
• Effective malware removal

ESET HOME Security Premium – Free Trial (1 month)

Everything from Online Scanner, plus:

• Real-time antivirus protection
• Safe banking and browsing
• Smart home and smartphone protection
• Firewall, Wi-Fi, and network shield
• Advanced scam and data protection

Alternatives

Kaspersky Virus Removal Tool – A portable tool that scans and removes viruses, trojans, and other malware without installation.

Malwarebytes – A security tool that detects and removes malware, ransomware, and other threats with advanced scanning features.

Norton Power Eraser – An aggressive malware removal tool designed to eliminate deeply embedded threats and unwanted applications.

HitmanPro – A cloud-assisted scanner that detects and removes malware using multiple antivirus engines.

F-Secure Online Scanner – A lightweight tool that scans your system for malware and removes threats without requiring a full antivirus installation.

System requirements

• OS: Windows 11 / Windows 10 / Windows 8.1 / Windows 8 / Windows 7
• Memory: 500 MB RAM
• Storage: 350 MB available space (400 MB recommended)

PROS

• Performs scans and effectively detects cookies
• Compatible with all popular browsers
• Capable of identifying and removing malware

CONS

• May sometimes produce false positives
• Some features are locked behind a paywall

Note: One-time scan and remove.