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ClamWin Free Antivirus

ClamWinHome Antimalware (primary)Compare with others in Home Antimalware

Product

A free, open-source (GPL) antivirus program for Microsoft Windows based on the ClamAV engine; it scans on demand and has no on-access real-time scanner. Supported platforms are Windows and Windows Server. It is recorded as supporting malware detection. It is aimed at Consumer buyers. It is ClamWin's entry in the home antimalware category.

Current Version
0.103.2.1
Product Page
clamwin.com
Market
Consumer
Licence
Open source
Price
Free
Record Created
2026-08-20
Last Updated
2026-10-10

Vendor

ClamWin is a free antivirus for Windows, released under the GNU General Public License, and one of the very few genuinely open-source security products in this index. It is a graphical front end and scheduler built around ClamAV, the open-source engine, developed by a small volunteer team. One limitation is fundamental and the project states it plainly: ClamWin does not provide real-time, on-access scanning. It scans on demand or on a schedule, which means it will find malware already on a machine but will not stop it arriving. Users who want live protection typically pair it with something else, and the portable edition is commonly kept on a USB stick for cleaning other people's machines. It is free, its source is public, and no vendor submits it to the paid laboratory test cycles, so the columns here will stay empty for it. Vendor page →

Website
clamwin.com
Country
Australia
Headquarters
Not known
Year Established
2004
Customers
Not known
Users
600K users
Revenue
Not known

Platforms

Windowsnative
Windows Servernative

Target Market

Consumer primary

Capabilities

Malware Detectionkeynative
Ransomware ProtectionkeyNot known
Behavioral DetectionkeyNot known
Web ProtectionkeyNot known
Email ProtectionNot known
Host FirewallNot known
Sandbox AnalysisNot known
Cloud-Assisted ScanningNot known
Heuristic DetectionNot known
Device ControlNot known
Vulnerability ShieldingNot known
Central Management ConsoleNot known

11 of 12 not yet known — not recorded, which is not the same as not supported.

Pricing

PlanLicencePriced perBilledPrice
SummaryOpen sourcenot statedno recurring chargeFree

Versions

  • 0.103.2.1Windowsreleased 2021-06-07

The newest release each source names per platform, not every release the vendor has shipped. A release date is shown only where one is recorded.

Independent Tests

Not tested This product does not appear in any test run CSI holds. That is not a low score.

Certifications

OESIS Framework SupportSupported1 activeSupported

Change History

This record was created 2026-08-20. Everything below is what has changed since.

  • 2026-09-23New versionNew version: 0.103.2.1 (Windows)evidence
  • 2026-09-23Platform addedRuns on Windows Serverevidence
  • 2026-09-22Product updatedListed in Home Antimalwareevidence
  • 2026-09-19Pricing plan addedPrice: open sourceevidence
  • 2026-09-09New versionNew version: 0.99.4.0 (Windows)evidence
  • 2026-08-20Certification addedCertified: OESIS Framework Support (Supported)evidence
  • 2026-08-20Capability addedMalware Detection: built inevidence
  • 2026-08-20Pricing plan addedPrice: freeevidence
  • 2026-08-20Product updatedSold to: Consumerevidence
  • 2026-08-20Product createdNew product listedevidence
  • 2026-08-20Platform addedRuns on Windowsevidence
  • 2026-08-20New versionNew version: 0.99.4.0evidence
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