Intrusion Detection and Prevention Software
Alternatives to pfSense
{"intro": "pfSense brings stateful firewall inspection and policy-based routing together in a FreeBSD-based distribution managed from a web interface. It supports static routes, concurrent IPv4 and IPv6, IDS/IPS tools including Snort analysis and Suricata rules, and IPsec, OpenVPN and WireGuard for remote-access or site-to-site VPNs. You can deploy it on selected hardware, virtual machines or cloud instances, with a free open-source Community Edition and Plus choices.\n\nAlternatives make more sense when the priority shifts from operating a firewall and router to controlling user access or linking devices. pfSense’s USB installer overwrites an entire hard drive and cannot dual boot, while its stated Plus prices vary by deployment: third-party hardware starts at $129 per year and Netgate appliances at $189 once. Compare whether you need traffic inspection and routing, identity and device controls, supported platforms, self-hosting, and subscription terms before moving.", "rows": [{"ref": "sw:goodaccess", "name": "GoodAccess", "best_for": "Hybrid access with SSO, posture checks and site-to-site networking", "pricing": "Free plan; paid from $7/user/mo annually; 14-day trial", "key_difference": "GoodAccess focuses on hybrid access with SSO, SCIM, device posture and advanced administration across six client platforms.", "choose_when": "Choose it when identity, device posture and broad client support matter more than pfSense’s firewall and routing functions."}, {"ref": "sw:openvpn-cloudconnexa", "name": "OpenVPN CloudConnexa", "best_for": "Cloud VPN access with advanced administration and device checks", "pricing": "Free plan; paid from $7/user/mo; 14-day trial", "key_difference": "CloudConnexa provides hybrid access with SSO, SCIM, device posture and site-to-site networking across Android, iOS, Linux, macOS, web and Windows.", "choose_when": "Choose it for managed user and device access across those platforms instead of pfSense’s firewall-centered deployment."}, {"ref": "sw:cloudflare-access", "name": "Cloudflare Access", "best_for": "Identity- and context-based access to apps and infrastructure", "pricing": "Free plan; paid from $7/user/mo annually", "key_difference": "Cloudflare Access verifies identity, device posture and context for each request, granting granular access to self-hosted apps, SaaS and infrastructure.", "choose_when": "Choose it when per-resource, least-privilege access is more important than pfSense’s packet inspection and routing."}, {"ref": "sw:tailscale", "name": "Tailscale", "best_for": "Simple encrypted peer-to-peer device networking", "pricing": "Free plan; paid from $8/user/mo; 14-day trial", "key_difference": "Tailscale is a zero-config WireGuard VPN with end-to-end encrypted peer-to-peer connections and device-level access control lists.", "choose_when": "Choose it when connecting devices simply matters more than operating pfSense’s firewall, routing and intrusion-prevention stack."}, {"ref": "sw:openvpn-access-server", "name": "OpenVPN Access Server", "best_for": "Enterprise VPN administration with audit logs", "pricing": "Free plan; paid from $7/mo; 14-day trial", "key_difference": "Access Server adds enterprise administration, SSO, SCIM, audit logs and site-to-site networking across self-hosted servers, clouds and many clients.", "choose_when": "Choose it when enterprise VPN controls and auditability outweigh pfSense’s integrated firewall and routing features."}, {"ref": "sw:f5-big-ip-apm", "name": "F5 BIG-IP APM", "best_for": "Advanced hybrid access with enterprise identity controls", "pricing": "Pricing on request; no free plan", "key_difference": "BIG-IP APM is a paid hybrid access product with SSO, SCIM, device posture and site-to-site networking, unlike pfSense’s freemium model.", "choose_when": "Choose it when advanced access administration fits your organization and a paid, quote-based product is acceptable."}, {"ref": "sw:netbird", "name": "NetBird", "best_for": "Self-hosted hybrid networking with audit logs", "pricing": "Free plan; paid from €6/user/mo", "key_difference": "NetBird combines hybrid access, SSO, SCIM, device posture, site-to-site networking and audit logs across self-hosted and desktop platforms.", "choose_when": "Choose it when those identity and audit controls suit your network better than pfSense’s firewall-oriented design."}]}
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CrowdSec CrowdSec suits teams looking to detect and block malicious IP activity across infrastructure or protect web applications.
From $49/mo Free plan Open source Web · Windows · macOS · Linux9.3 Visit Specs - 02
OPNsense Community Edition may suit users seeking a self-hosted firewall and routing platform on x86-64.
Free plan Open source Web · iOS · Android · API9.1 Visit Specs - 03
IPFire IPFire suits individuals, businesses, and organizations that need a self-hosted firewall for networks ranging from home offices to larger deployments.
From $91.58/mo Free plan Open source Web · Linux · API · Self-hosted9.0 Visit Specs - 04
OSSEC OSSEC suits teams that need host and network-component monitoring across multiple operating systems, including log, file-integrity, and policy checks.
From $4.58/mo Free plan Open source Windows · macOS · Linux · API9.0 Visit Specs - 05 Arista NG Firewall
NG Firewall suits organizations seeking network security and management capabilities across hybrid deployments.
From $22.50/mo Free plan Web8.9 Visit Specs - 06 Wazuh
Wazuh may suit individuals and organizations of different sizes seeking endpoint, cloud, and network security monitoring.
From $571/mo Free plan Open source Web · Windows · macOS · Linux8.6 Visit Specs - 07
SELKS SELKS may suit small-to-medium organizations, as well as practitioners, researchers, educators, students, and hobbyists exploring Suricata.
Free plan Open source Web · Windows · Linux · Self-hosted8.3 Visit Specs - 08 Atomic OSSEC
It suits organizations managing security and compliance across cloud and datacenter environments, including those with legacy systems or operational technology.
Free trial Web · Windows · macOS · Linux8.2 Visit Specs - 09
AWS Network Firewall From $0.07/mo Web · API7.9 Visit Specs - 10
FortiGate Free trial Self-hosted7.8 Visit Specs - 11 Cisco Catalyst Center Web · Windows · macOS · Linux7.7 Visit Specs
- 12 Clear NDR - Enterprise Web · Linux · API · Self-hosted7.7 Visit Specs
- 13 Snort From $2.50/mo Free plan Linux · Self-hosted7.7 Visit Specs
- 14 RdpGuard From $4.16/mo Free trial Windows7.6 Visit Specs
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Suricata Suricata suits home, corporate, and government users, as well as developers, researchers, and third-party tooling developers who need network detection or monitoring.
Free plan Windows · macOS · Linux7.6 Visit Specs - 16
Forcepoint Next Generation Firewall It is aimed at large enterprises, campus networks, data centers, offices, branches, remote sites, and stores.
Windows · macOS · Linux · Android7.5 Visit Specs - 17 Sophos Central Firewall Management Free trial Web · API · Self-hosted7.5 Visit Specs
- 18 Stormshield Management Center
SMC suits organizations managing multi-site networks built around SNS firewalls, particularly teams that need centralized policy, VPN, firewall, or SD-WAN administration.
Free trial Web · Linux · API · Self-hosted7.5 Visit Specs - 19
Azure Firewall Premium Web · API7.4 Visit Specs - 20
FortiGuard DNS Filtering Service 7.4 Visit Specs - 21 scanlogd
It suits Linux or self-hosted users who need TCP port-scan detection and packet-capture choices.
Free plan Linux · Self-hosted7.4 Visit Specs - 22 Juniper Security Director
It suits organizations managing Juniper SRX environments across on-premises, cloud, or hybrid infrastructure.
Web · Self-hosted7.3 Visit Specs - 23 Securepoint RC1000R G6 Web · Windows · iOS · Android7.3 Visit Specs
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Oracle Cloud Infrastructure DNS Web · Linux · API7.2 Visit Specs - 25 Huawei HiSecEngine USG6800G
It suits organizations seeking centralized network security for branches, campuses, or data centers.
Web7.1 Visit Specs - 26 Zyxel Intrusion Prevention System 6.5 Visit Specs
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Palo Alto Networks Advanced Threat Prevention From $0.01/mo6.4 Visit Specs - 28 AhnLab AIPS Web6.2 Visit Specs
- 29 Check Point Intrusion Prevention System (IPS)Check Point Software Technologies Ltd. Self-hosted6.0 Visit Specs
- 30 Barracuda CloudGen Firewall 5.9 Visit Specs