Free Antimalware
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Antimalware you can use at no cost: free antivirus and the free tiers of paid products, for people protecting their own devices.
— means not known; · not tested; blank: does not apply to that kind of product; ✕ a sourced assertion of absence. These are four different things. The dot after each value shows freshness, and ⓘ opens the evidence.
- Products
- 30
- Vendors
- 22
- AV-TEST
- 5/30
- AV-Comparatives
- 5/30
- SE Labs
- 2/30
- OPSWAT Certification
- 11/30
Lab tests | Certifications | Product & vendor info | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Compare | Vendor↕ | Product↕ | AV-TEST↕FilterA product tested on several platforms is judged on its average. Products the lab did not measure are left out — not tested is not a low score. | AV-Comparatives↕Filtered · 1 setProtection System Impact A product tested on several platforms is judged on its average. Products the lab did not measure are left out — not tested is not a low score. | SE Labs↕FilterA product tested on several platforms is judged on its average. Products the lab did not measure are left out — not tested is not a low score. | OPSWAT Certification↕ | OESIS Support↕ | Government Restrictions↕ | Website | Country↕ | Employees↕ – | Customers↕ | Users↕ | Revenue | Market | Licence↕ | Price↕ – | Version↕ | Platforms | Headquarters↕ | Support↕ | Year Established↕ – | Last Update↕ |
| Microsoft | Windows Defender | WindowsProt 6·Perf 5.5·Usab 6 | ProtectionAdvanced+·Prot 99%·False 0Real-World Protection Test System ImpactAdvanced·Impact 13.5·AV-C 80/90 | AAA·Total 98%Home Anti-Malware Protection | Platinum | Supported | None known | learn.microsoft.com/…/microsoft-d… | United States | 223,000 | 1.6M organisations | 1.4B devices protectedLLM est. | $331.8B (2026) | ConsumerEnterpriseSMB | Free | Free | 6.1 | WindowsWindows Server | Redmond, United States | 153Support by continent
Support in 153 countries on 6 continents For more details, please check the vendor info. | 1975 | 2026-10-21 | |
| AVG Technologies CZ | AVG AntiVirus Free | AndroidProt 6·Perf 6·Usab 6 | ProtectionAdvanced+·Prot 99.3%Real-World Protection Test System ImpactAdvanced+·Impact 5.3·AV-C 90/90 | Not tested | Not known | Supported | None known | avg.com/…/free-antivirus-download | Czechia | 2,000 | Not known | 200M users | ≈ $77.0M (2016) | Consumer | Free | Free | 26.10.11201.3863 | macOSWindows | Brno, Czechia | 2Support by continent
Support in 2 countries on 2 continents, from 3 known locations For more details, please check the vendor info. | 1991 | 2026-10-28 | |
| Avira | Avira Free Security | Not tested | ProtectionAdvanced+·Prot 99.5%·False 6Real-World Protection Test System ImpactWindowsImpact 23·AV-C 80/90 | Not tested | Platinum | Supported | None known | avira.com/en/free-security | Germany | 1,000 | Not known | 30M devices protected | ≈ $75.6M (2017) | Consumer | Free | Free | 15.0.2201.2134 | AndroidiOSmacOSWindows | Tettnang, Germany | 4Support by continent
Support in 4 countries on 3 continents For more details, please check the vendor info. | 1986 | 2026-10-10 | |
| AVAST Software a.s. | avast! Free Antivirus | WindowsProt 6·Perf 6·Usab 6 | ProtectionAdvanced+·Prot 99.3%Real-World Protection Test System ImpactAdvanced+·Impact 5.2·AV-C 90/90 | AAA·Total 98%Home Anti-Malware Protection | Platinum | Supported | None known | avast.com/…/free-antivirus-downlo… | Czechia | 2,000 | 740K organisations | 440M users | $892.9M (2020) | Consumer | Free | Free | 2015.0 | LinuxWindows | Prague, Czechia | 2Support by continent
Support in 2 countries on 2 continents For more details, please check the vendor info. | 1988 | 2026-10-25 | |