CrowdSec
by CrowdSecCrowdSec suits teams seeking to detect or block malicious IP activity across infrastructure and applications.
Free plan Free trial Open source From $49 a month iPhone & iPadWebWindowsMacLinuxBrowser extension+2
- Home
- IT & Infrastructure
- Intrusion Detection and Prevention Software
Best Intrusion Detection and Prevention Software 2026
Facts read 27 Sep 2026 – 15 Oct 2026
Protecting networks and systems starts with understanding what each intrusion detection and prevention tool covers and how it can be deployed. Compare network scope, cloud workload support, and supported platforms against the environment you need to monitor. Encrypted traffic inspection, threat intelligence, and inline blocking distinguish additional capabilities; free plans and paid-from pricing help you weigh access and cost. The entries include Zscaler Private Access, WatchGuard FireCloud, and Securepoint RC1000R G6, as well as options such as CrowdSec and OPNsense. Consider whether your priority is visibility, blocking, or both, and which listed capabilities matter for the systems in scope.
The standings: top 10
| Name | In a line | Record score | Price from | Try it free | Runs on | Facts read |
|---|---|---|---|---|---|---|
| 01 CrowdSec | CrowdSec suits teams seeking to detect or block malicious IP activity across infrastructure and applications. | 6.5 | $49 a month | Free plan | iPhone & iPad, Web, Windows, Mac | 15 Oct 2026 |
| 02 Wazuh | Wazuh describes its users as ranging from individuals and small businesses to large enterprises. | 6.3 | $571 a month | Free plan | Web, Windows, Mac, Linux | 15 Oct 2026 |
| 03 OSSEC | OSSEC suits teams that need host and network-component monitoring across multiple operating systems, including for PCI or HIPAA requirements. | 6.1 | $55 a year | Free plan | Windows, Mac, Linux, API | 14 Oct 2026 |
| 04 IPFire | IPFire is presented for individuals, businesses, and organizations managing networks from home offices to global enterprises. | 6.0 | $1,099 a year | Free plan | Web, Linux, API, Self-hosted | 15 Oct 2026 |
| 05 OPNsense | OPNsense suits administrators seeking a self-hosted firewall and routing platform with VPN, failover, and intrusion-prevention capabilities. | 6.0 | Free plan | Free plan | Android, iPhone & iPad, Web, API | 15 Oct 2026 |
| 06 pfSense | pfSense suits home and remote workers, businesses, government, education and service providers seeking firewall and routing software. | 5.6 | Free plan | Free plan | Web, Linux, Self-hosted | 2 Oct 2026 |
| 07 SELKS | SELKS may suit small-to-medium organizations and practitioners, researchers, educators, students, or hobbyists exploring Suricata. | 5.1 | Free plan | Free plan | Web, Windows, Linux, Self-hosted | 15 Oct 2026 |
| 08 Arista NG Firewall | It suits organizations managing network security and traffic across hybrid deployments. | 4.9 | Free plan | Free plan | Web | 27 Sep 2026 |
| 09 Snort | 4.9 | $29.99 a year | Free plan | Linux, Self-hosted | 30 Sep 2026 | |
| 10 Suricata | 4.8 | Free plan | Free plan | Windows, Mac, Linux | 30 Sep 2026 |
02
Wazuh
Wazuh describes its users as ranging from individuals and small businesses to large enterprises.
WebWindowsMac+3 Record6.3 Visit
03
OSSEC
OSSEC suits teams that need host and network-component monitoring across multiple operating systems, including for PCI or HIPAA requirements.
WindowsMacLinux+2 Record6.1 Visit
04
IPFire
IPFire is presented for individuals, businesses, and organizations managing networks from home offices to global enterprises.
WebLinuxAPI+1 Record6.0 Visit
05
OPNsense
OPNsense suits administrators seeking a self-hosted firewall and routing platform with VPN, failover, and intrusion-prevention capabilities.
AndroidiPhone & iPadWeb+2 Record6.0 Visit
6
pfSense
WebLinuxSelf-hosted Free plan Record5.6 Visit pfSense suits home and remote workers, businesses, government, education and service providers seeking firewall and routing software.
7
SELKS
WebWindowsLinux+1 Free plan Record5.1 Visit SELKS may suit small-to-medium organizations and practitioners, researchers, educators, students, or hobbyists exploring Suricata.
8
Arista NG Firewall
Web Free plan Record4.9 Visit It suits organizations managing network security and traffic across hybrid deployments.
12
Securepoint RC1000R G6
AndroidiPhone & iPadWeb+1 — Record4.4 Visit This appliance suits medium-sized companies, public authorities, and medical facilities securing networks for up to 1,000 users.
14
scanlogd
LinuxSelf-hosted Free plan Record4.3 Visit It suits Linux administrators and self-hosted operators who need TCP port scan detection.
16
Forcepoint Next Generation Firewall
AndroidWindowsMac+3 — Record4.2 Visit It is positioned for large enterprises, campus networks, data centers, offices, branches, remote sites, and stores that need network security and SD-WAN connectivity.
17
Stormshield Management Center
WebLinuxAPI+1 — Record4.1 Visit SMC suits administrators responsible for multi-site networks built around Stormshield SNS firewalls.
24
Huawei HiSecEngine USG6800G
Web — Record3.6 Visit It suits organizations seeking centralized network security for branches, campuses, or data centers.
25
Juniper Security Director
WebSelf-hosted — Record3.6 Visit This product suits organizations managing Juniper SRX firewalls across on-premises, cloud, or hybrid environments.
More in IT & Infrastructure
IT Asset Management Software 112IT Automation Software 77Residential Proxy Services 72IT Knowledge Base Software 60Website Monitoring Software 55IT SLA Management Software 50IT Help Desk Software 49Patch Management Software 49Identity and Access Management Software 45Application Deployment Software 44IT Change Management Software 43IT Release Management Software 42Zero Trust Network Access Software 42IT Vendor Management Software 41CMDB Software 39Competitor Price Monitoring Software 39IT Problem Management Software 39DDoS Protection Software 37