Best OSSEC Alternatives in 2026

20 platforms from intrusion detection and prevention software ranked against OSSEC on the same published basis.

  1. 1OSSEC vs CrowdSec
  2. 2OSSEC vs Wazuh
  3. 4OSSEC vs pfSense
  4. 5OSSEC vs Suricata
  5. 6OSSEC vs Arista NG Firewall
  6. 7OSSEC vs SELKS
  7. 8OSSEC vs WatchGuard FireCloud
  8. 9OSSEC vs Snort
  9. 10OSSEC vs IPFire
  10. 11OSSEC vs OPNsense
  11. 12OSSEC vs Trellix Data Loss Prevention
  12. 13OSSEC vs Zscaler Private Access
  13. 14OSSEC vs Check Point DDoS Protector
  14. 15OSSEC vs Forcepoint ZTNA
  15. 16OSSEC vs Huawei HiSecEngine USG6800G
  16. 17OSSEC vs Palo Alto Networks Panorama
  17. 18OSSEC vs Radware Alteon
  18. 19OSSEC vs AhnLab V3 Internet Security
  19. 20OSSEC vs AWS Network Firewall
  20. 21OSSEC vs Hillstone Security Management

OSSEC alternatives compared

#PlatformScoreFree planFromRuns on
1CrowdSec8.0Free plan—API, Browser, Linux, Mac, self-hosted, Web, Windows
2Wazuh7.8Free plan$571/moAPI, Linux, Mac, self-hosted, Web, Windows
4pfSense7.6Free plan—Linux, self-hosted, Web
5Suricata7.1Free planFreeLinux, Mac, Windows
6Arista NG Firewall7.0Free plan$22.50/moWeb
7SELKS7.0Free planFreeLinux, self-hosted, Web, Windows
8WatchGuard FireCloud7.0No$8.15/moAndroid, API, iOS, Mac, self-hosted, Web, Windows
9Snort6.9Free plan$2.50/moLinux, self-hosted
10IPFire6.7Free planFreeLinux, self-hosted, Web
11OPNsense6.7Free plan—API, self-hosted, Web
12Trellix Data Loss Prevention6.7No—API, Mac, self-hosted, Web, Windows
13Zscaler Private Access6.7No—Android, iOS, Linux, Mac, Web, Windows
14Check Point DDoS Protector6.5No—Linux, self-hosted, Web
15Forcepoint ZTNA6.1No—Mac, self-hosted, Web, Windows
16Huawei HiSecEngine USG6800G6.1No—Web
17Palo Alto Networks Panorama6.1No—API, self-hosted, Web
18Radware Alteon6.1No—API, Linux, self-hosted, Web
19AhnLab V3 Internet Security6.0No—Windows
20AWS Network Firewall5.9No$0.07/moAPI, Web
21Hillstone Security Management5.9No——
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Questions about OSSEC alternatives

What is the best alternative to OSSEC?

CrowdSec, number 1 in intrusion detection and prevention software with a score of 8.0 out of 10. The others here: Wazuh, pfSense, Suricata and 16 more.

What is the best free alternative to OSSEC?

CrowdSec is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.