5+ best antiviruses for online scanning [Windows 10/11 & Mac]

Milan Stanojevic
by Milan Stanojevic
Windows & Software Expert
Milan has been enthusiastic about PCs ever since his childhood days, and this led him to take interest in all PC-related technologies. Before joining WindowsReport, he worked as a front-end web developer. Read more
Affiliate Disclosure
  • When you only want to do a quick check to find if your PC is infected, but without installing any app, use an antivirus with online scanner.
  • Panda's tool can help you scan, detect malware, and also disinfect your computer if needed.
  • However, to prevent future infections, give it a try to ESET, an AI-based antivirus solution. 
  • Our top picks also include freeware options, with a firewall, network protection, and built-in VPN.
antivirus for online scan
ESET Antivirus comes with all the security tools that you may ever need to protect your data and privacy, including:

  • Anti-theft support
  • Webcam protection
  • Intuitive setup and UI
  • Multi-platform support
  • Banking-level encryption
  • Low system requirements
  • Advanced anti-malware protection

An antivirus program needs to be fast, efficient, and cost-effective, and this one has them all.

If you’re not ready to invest and/or install a good, full-fledged antivirus software program, there are two other options you can try that are made readily available: free antivirus or free online scans.

An antivirus for online scans may not be a truly free solution, neither will it provide further benefits. But it will let you know of any potential threats or those already lurking in your system or network.

The difference with the free trial or free editions is the antivirus for online scans executes its work on a server on the internet.

Online scans are done differently depending on which antivirus you decide to use. Some will work via the Internet, while others let you download and scan for free.

In this article, we will present to you with both online scan tools and free, or free trial antiviruses solutions.

What is the best antivirus for online scans to use today?

ESET Internet Security

ESET Internet Security is a free trial antivirus. You can use it free for 30 days, in order to detect, removes malware, and prevent future infections.

Some of the benefits that come with this antivirus include a comprehensive detection of both known and unknown malware.

In addition, the tool also boats up-to-date threat, heuristic detection algorithms, and in-depth scanning.

The latest version has improved usability, finds and removes malware in the system registry, offers restart and rescan for malware that can be cleaned with restart, plus scans Autostart locations and boot sector.

Other best features of ESET include:

  • Secures Windows, Mac, Android, and Linux devices
  • Prevent unauthorized access to your computer
  • Test your home router and smart devices for vulnerabilities
  • Block any unexpected access to your webcam
ESET Internet Security

ESET Internet Security

Keep your computer free from viruses, and scan it for already existing malware.

Free trialVisit website



Powered by Bullguard, the Virus Scanner is a popular freeware with which you can team up to scan critical areas of your device or computer quickly.

In fact, all you need to do is download the scanner and start the analysis covering every single potentially exploitable area of your system.

This includes your running processes, network connections, files, plugins, system folders, and other files like DLL and EXE within seconds, after which you can view a detailed report of the scan.

Needless to say, this online scan antivirus will not only detect malware but will also get rid of it through its powerful removal tools.

Speaking about tools, let’s quickly look at its key features:

  • In-depth analysis and accurate detection of potential malware
  • Free 60-day trial version to fully convince yourself of its capacities
  • Comprehensive scan and removal features
  • Protection against viruses, worms, Trojan Horses, spam, spyware, identity theft, hacking, phishing, fraud, and social engineering
  • Light and extremely fast
  • Live Support Chat available 24/7


Free online virus scan with a premium endorsement? Yes, it is possible thanks to BullGuard.

Free trialVisit website



Avira is another freeware antivirus, that can be successfully used to scan your computer for any online threats, and also to remove security issues if found.

Additionally, it includes a free VPN, that you can use to surf the web, or for other online activities, in an anonymously and secure manner.

Furthermore, it features a password manager tool, in order to secure your online accounts with a safe and strong password, that you don’t even need to remember.

Let’s see other key features of Avira:

  • Improves your PC’s performance
  • Block all online threats
  • Prevent malware, ransomware, and spyware
  • Anti-scan protection


You can scan, remove, and protect your computer from viruses with a freeware antivirus.



The real-time protection feature included in the Bitdefender security software provides continuous protection against a wide range of malware threats.

Actually, this powerful scanning tool will cover anything from apps to network shares, archives, files, and emails to boot sectors.

Obviously, you can use the real-time online scan feature not only to detect malware, but also to take appropriate actions including moving files to quarantine, and blocking access.

Speaking about tools, let’s quickly look at its key features:

  • Default real-time protection against malware
  • Minor impact on system performance thanks to its lightweight infrastructure
  • Customizable scanning options for a tailored analysis
  • Comprehensive scanning reports with appropriate measures
  • Options to scan for keyloggers and early boot scan


Get premium features, and real-time protection powered by Bitdefender for all OS versions.

Free trialVisit website



There’s no way you can discuss antivirus software without mentioning Kaspersky at least once.

Kaspersky’s antivirus is also a standalone app that you have to download and run on your PC, in order to detect and prevent malware.

It is simple, easy to use, plus you get to perform a full system scan real quick and schedule regular scans if you like, though it does this bi-weekly by default.

Let’s quickly look at its key features:

  • Delivers reports presented in several sections such as malware, system protection, and then other issues
  • Proper scanning and cleanup of your system or PC
  • Customizable options for scanning (scheduling, depth etc.)
  • Lightweight, standalone app


Find malware and prevent future threats with an efficient and optimized antivirus.

Free trialVisit website



With Panda’s Cloud Cleaner, a free antivirus for online scans, you can scan your PC for free using this advanced disinfector that is based on cloud scanning to detect malware that traditional solutions can’t.

It also gives you options for online scanning if you can start the infected computer, or if you cannot start it.

Let’s quickly look at its key features:

  • Rescue USB to disinfect PCs that cannot boot up
  • Panda Cloud Cleaner Rescue ISO (for computers that won’t boot -> advanced users only)
  • Web and email support, backed by 24/7 year-round remote and chat support
  • Tune-up and virus removal tools
  • Maintenance and repair of your OS

Get Panda Cloud Cleaner

Avast Free Antivirus

Avast Free Antivirus is a freeware solution that you can test on your computer, and continue using it for as much as you want.

Although is free of charge, it includes a plethora of cybersecurity features to help you protect your computer against viruses and malware.

Moreover, it won’t just scan check applications for malware, it will also continue to monitor their behavior to make sure they don’t suddenly go rogue.

Other great features that are worth mentioning:

  • Protection against viruses, ransomware, malware, and zero-day threats
  • Checks your home Wi-Fi network for vulnerabilities
  • Uses real-time protection
  • Available for multiple systems, such as Windows, Mac, Android, iOS
Avast Free Antivirus

Avast Free Antivirus

Protect and scan your PC for vulnerabilities, with one comprehensive and free antivirus.

Free DownloadVisit website



F-Secure’s Online Scanner scans and cleans your PC for free, getting rid of viruses and spyware. It also works even if you have other security software installed.

This antivirus for online scans is easy to use with a few clicks after which you download and run it.

Let’s quickly look at its key features:

  • It leaves nothing on your PC, plus it is completely free
  • Standalone program that automatically downloads the signature files before scanning your PC
  • If it finds infected files, F-Secure will request that you restart your computer so it can clean them
  • You can also see details of where malware is located, the malware type, and the number of infected files

Scan with F-Secure Online Scanner

Trend Micro


HouseCall by Trend Micro is a free antivirus for online scan that detects and fixes malware on your PC.

Features include an easy-to-use interface, fast scanning, three scan options from quick, full, or custom.

Smart Scan is the latest antivirus protection, with reduced download times, scan results comparisons, and file recovery.

Let’s quickly look at its key features:

  • Standalone and browser-independent application, compatibility issues-free
  • Enhanced detection and cleanup (it addresses sophisticated threats on all your network devices with recommendations on how to eliminate them)
  • Anti-ransomware toolkit, Rubotted, and the RootKit Buster
  • Automatic virus updates, personal firewall, spam blocking, spyware detection, and removal
  • Protection against identity theft and protection for your router/Wi-Fi

Scan with Trend Micro

Ready for a test with any of these antiviruses solutions for online scans? Or maybe you want a free app to also prevent issues not only to find them out.

If you want to discover even more solutions to keep your computer safe all the time, take a look at our guide including the best antiviruses for Windows 10.

Let us know which one you consider to be the best online antivirus scanner, and share your experience in the comments section below.

tipProtect your PC now!
Don't leave your PC unprotected! Get one of the best antivirus tools in the world and navigate the Internet without worries! ESET Antivirus comes with all the security tools that you may ever need to protect your data and privacy, including:

  • Webcam protection
  • Multi-platform support
  • Low system requirements
  • Top-notch anti-malware protection

Frequently Asked Questions

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