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Instead of OSSEC

OSSEC alternatives

OSSEC is an open-source intrusion detection system that covers Linux, macOS, Windows and other operating systems. It combines log analysis, file-integrity checks, Windows registry monitoring, rootkit detection, policy enforcement, real-time alerts and active response. Agent-based and agentless monitoring can include routers and firewalls, while centralized policies and PCI or HIPAA support help coordinate mixed environments. OSSEC+ adds machine learning, ELK integration, community threat sharing and thousands of rules. Free options are available, with Atomic OSSEC adding a console and enterprise integrations.

1. 1

   CrowdSec

   by CrowdSec

   Free plan Open source APIExtensioniPhone+5

   Blocking malicious IPs through open-source behavior detection — CrowdSec analyzes logs and requests to detect and block malicious IPs, rather than OSSEC’s broader host monitoring.

   Free plan · paid from $49/mo Visit site
2. 2 W

   Wazuh

   Free plan Open source APILinuxMac+3

   Unified XDR, SIEM, cloud and vulnerability monitoring — Wazuh unifies XDR and SIEM with vulnerability detection and cloud-service monitoring beyond OSSEC’s host-focused scope.

   8.5 Free plan · paid from $571/mo · 14-day trial Visit site
3. 3

   SELKS

   Free plan Open source LinuxSelf-hostedWeb+1

   Free Suricata network IDS, IPS and threat hunting — SELKS provides a web-managed Suricata network stack with packet capture and threat hunting instead of OSSEC host detection.

   Free plan Visit site
4. 4

   Suricata

   Free plan LinuxMacWindows

   High-throughput network traffic analysis and threat detection — Suricata is a focused network engine that inspects multi-gigabit traffic, extracts files and logs protocols rather than monitoring hosts.

   Free plan Visit site
5. 5 A

   Arista NG Firewall

   by Arista NG Firewall

   Free plan Web

   Web-managed firewall security and connectivity — Arista NG Firewall provides web-managed firewall and connectivity features, unlike OSSEC’s host intrusion detection focus.

   Free plan · paid from $25/mo · 30-day trial Visit site
6. 6

   IPFire

   Free plan Open source APILinuxSelf-hosted+1

   Open-source firewall, VPN and network-zone management — IPFire combines stateful firewalling, VPNs, proxy filtering and Suricata prevention, while OSSEC centers on host detection.

   Free plan Visit site
7. 7

   OPNsense

   by OPNsense

   Free plan Open source AndroidAPIiPhone+2

   User-friendly FreeBSD firewall and routing — OPNsense is a FreeBSD firewall and routing platform with IPv4/IPv6 controls and VPN integrations, not a host IDS.

   Free plan Visit site
8. 8 A

   Avidemux

   Free plan Open source LinuxMacWeb+1
   9.3 Free plan Visit site
9. 9 A

   AIDE

   Free plan LinuxMacSelf-hosted
   7.6 Open source Visit site
10. 10

    Elastic Security

    Free plan APILinuxSelf-hosted+1
    7.6 Free plan · paid from $0.09 · 14-day trial Visit site
11. 11 E

    EventSentry File Monitoring

    Free plan LinuxMacWeb+1
    7.6 From $85 · 30-day trial Visit site
12. 12

    FIM

    Free plan LinuxMacWindows
    7.4 Free plan Visit site
13. 13 O

    Open Source Tripwire

    Free plan LinuxMacSelf-hosted+1
    7.3 Free plan Visit site
14. 14

    Paessler PRTG Network Monitor

    Free plan AndroidAPIiPhone+5
    7.2 Free plan · paid from $200/mo (annual) · 30-day trial Visit site
15. 15 S

    Samhain

    Free plan LinuxMacSelf-hosted+1
    6.8 Free plan Visit site
16. 16 A

    Atomic OSSEC

    Free trial LinuxMacSelf-hosted+2
    6.6 From $5/mo · 14-day trial Visit site
17. 17 W

    Wordfence Security

    Free plan Self-hostedWeb
    6.6 Free plan Visit site
18. 18 C

    CimTrak Integrity Suite

    Free trial LinuxMacSelf-hosted+2
    6.5 Pricing on request Visit site
19. 19

    CrowdStrike Falcon Surface

    Free trial LinuxMacWeb+1
    6.5 Pricing on request · 15-day trial Visit site
20. 20 M

    ManageEngine ADAudit Plus

    Free plan WebWindows
    6.5 Free plan · paid from $595 · 30-day trial Visit site
21. 21 V

    Vigil Baseline

    Free plan Linux
    6.5 Free plan Visit site
22. 22 F

    FileAudit

    Free trial AndroidiPhoneSelf-hosted+2
    6.4 Pricing on request · 30-day trial Visit site
23. 23 K

    Kaspersky Endpoint Security for Business

    Free trial AndroidAPIiPhone+5
    6.4 Pricing on request Visit site
24. 24 L

    Lepide Auditor

    Free trial AndroidiPhoneSelf-hosted+2
    6.3 Pricing on request · 20-day trial Visit site
25. 25

    PA File Sight

    Free trial AndroidAPIiPhone+4
    6.1 Free plan · paid from $49 · 30-day trial Visit site
26. 26 K

    Kaspersky Industrial CyberSecurity Platform

    Paid APILinuxSelf-hosted+2
    5.8 Pricing on request Visit site
27. 27 S

    SolarWinds Security Event Manager

    Free trial Self-hostedWebWindows
    5.8 30-day trial Visit site
28. 28 O

    OWASP Four Clover

    Free plan
    5.5 Free plan Visit site
29. 29

    Sysdig Secure

    Paid APILinuxMac+3
    5.5 Pricing on request Visit site
30. 30 T

    Tripwire Enterprise

    Paid APILinuxSelf-hosted+2
    5.4 Pricing on request Visit site

Alternatives make sense when OSSEC’s command-line management, host-centered scope or pricing structure does not match your needs. Some choices concentrate on malicious IP blocking, network intrusion prevention, firewall and VPN functions, or broader endpoint, cloud and compliance analysis. Compare whether you need host files and logs, network traffic and packets, or perimeter routing controls. Also weigh platform coverage, management style, integrations and ongoing product status: SELKS is free and feature-rich for network investigation, but active enhancement stopped and no future releases are planned.

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