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Best F-Secure Internet Security Alternatives in 2026

Updated

20 platforms from antivirus software ranked against F-Secure Internet Security on the same published basis.

  1. 1
    ClamAV Free plan apiLinuxMacself-hostedWin Free7.9
    F-Secure Internet Security vs ClamAV
  2. 2
    Bitdefender Total Security Free trial AndroidiOSMacWin $5/mo7.1
    F-Secure Internet Security vs Bitdefender Total Security
  3. 3
    Bitdefender Antivirus Plus Free trial AndroidiOSMacWin $2.08/mo6.9
    F-Secure Internet Security vs Bitdefender Antivirus Plus
  4. 4
    Kaspersky Antivirus AndroidiOSLinuxMacWin $4.58/mo6.8
    F-Secure Internet Security vs Kaspersky Antivirus
  5. 5
    Avast One AndroidiOSMacWin 6.8
    F-Secure Internet Security vs Avast One
  6. 6
    Norton 360 AndroidiOSMacWin $7.92/mo6.8
    F-Secure Internet Security vs Norton 360
  7. 7
    Malwarebytes Premium AndroidextensioniOSMacWin 6.8
    F-Secure Internet Security vs Malwarebytes Premium
  8. 8
    F-Secure Total Free trial AndroidiOSMacWin $5.83/mo6.8
    F-Secure Internet Security vs F-Secure Total
  9. 9
    Microsoft Defender Antivirus Win 6.8
    F-Secure Internet Security vs Microsoft Defender Antivirus
  10. 10
    Avira Free Security Free plan AndroidiOSMacWin Free6.8
    F-Secure Internet Security vs Avira Free Security
  11. 11
    Comodo Internet Security Free plan Win 6.8
    F-Secure Internet Security vs Comodo Internet Security
  12. 12
    ESET HOME Security AndroidMacWin 6.7
    F-Secure Internet Security vs ESET HOME Security
  13. 13
    Avast Free Antivirus Free plan AndroidiOSMacWin Free6.7
    F-Secure Internet Security vs Avast Free Antivirus
  14. 14
    Avira Free Antivirus Free plan AndroidiOSMacWin Free6.7
    F-Secure Internet Security vs Avira Free Antivirus
  15. 15
    Bitdefender GravityZone Small Business Security LinuxMacWin 6.6
    F-Secure Internet Security vs Bitdefender GravityZone Small Business Security
  16. 16
    Kaspersky Plus Internet Security AndroidiOSLinuxMacWin 6.6
    F-Secure Internet Security vs Kaspersky Plus Internet Security
  17. 17
    ESET Small Business Security AndroidiOSMacWin 6.5
    F-Secure Internet Security vs ESET Small Business Security
  18. 18
    Windows Security Win 6.5
    F-Secure Internet Security vs Windows Security
  19. 19
    Avira Prime Free trial AndroidextensioniOSMacWin $9.17/mo6.5
    F-Secure Internet Security vs Avira Prime
  20. 20
    IObit Malware Fighter Free plan Win Free6.5
    F-Secure Internet Security vs IObit Malware Fighter

F-Secure Internet Security alternatives compared

#PlatformScoreFree planFromRuns on
1ClamAV7.9Free planFreeAPI, Linux, Mac, self-hosted, Windows
2Bitdefender Total Security7.1No$5/moAndroid, iOS, Mac, Windows
3Bitdefender Antivirus Plus6.9No$2.08/moAndroid, iOS, Mac, Windows
4Kaspersky Antivirus6.8No$4.58/moAndroid, iOS, Linux, Mac, Windows
5Avast One6.8No—Android, iOS, Mac, Windows
6Norton 3606.8No$7.92/moAndroid, iOS, Mac, Windows
7Malwarebytes Premium6.8No—Android, Browser, iOS, Mac, Windows
8F-Secure Total6.8No$5.83/moAndroid, iOS, Mac, Windows
9Microsoft Defender Antivirus6.8No—Windows
10Avira Free Security6.8Free planFreeAndroid, iOS, Mac, Windows
11Comodo Internet Security6.8Free plan—Windows
12ESET HOME Security6.7No—Android, Mac, Windows
13Avast Free Antivirus6.7Free planFreeAndroid, iOS, Mac, Windows
14Avira Free Antivirus6.7Free planFreeAndroid, iOS, Mac, Windows
15Bitdefender GravityZone Small Business Security6.6No—Linux, Mac, Windows
16Kaspersky Plus Internet Security6.6No—Android, iOS, Linux, Mac, Windows
17ESET Small Business Security6.5No—Android, iOS, Mac, Windows
18Windows Security6.5No—Windows
19Avira Prime6.5No$9.17/moAndroid, Browser, iOS, Mac, Windows
20IObit Malware Fighter6.5Free planFreeWindows
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Questions about F-Secure Internet Security alternatives

What is the best alternative to F-Secure Internet Security?

ClamAV, number 1 in antivirus software with a score of 7.9 out of 10. The others here: Bitdefender Total Security, Bitdefender Antivirus Plus, Kaspersky Antivirus and 16 more.

What is the best free alternative to F-Secure Internet Security?

ClamAV is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.