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Personal Firewall Vendors: Web Resources and Links

Firewalls for individuals and small offices — built-in firewalls, application firewalls, suites and router appliances.

36 topics•5 categories•Updated October 2026

Built-in & Application Firewalls

8 entries

Control what connects in and out of a device.

01Microsoft Defender FirewallWindows built-in firewall and how to turn it on. 02macOS firewallBlock incoming connections on a Mac. 03GlassWireNetwork monitor and firewall for Windows. 04Little SnitchOutbound connection firewall for macOS. 05LuLuFree open-source outbound firewall for macOS. Version 4.5.3 was listed on GitHub in October 2026. 06OpenSnitchApplication firewall for Linux. The latest GitHub release listed is v1.8.0, from August 2025. 07Portmaster (Safing)Open-source application firewall and privacy tool. GitHub lists v2.2.7 (Beta) from October 2026. 08ZoneAlarmPersonal firewall and security suite.

Security Suites with Firewalls

5 entries

Antivirus suites that include a firewall.

09BitdefenderSecurity suites. 10NortonSecurity suites with a smart firewall. 11KasperskySecurity suites. 12ESETSecurity suites with a personal firewall. 13ComodoComodo security products.

Home & Small-Business Firewall Routers

7 entries

Network-level protection for a whole site.

14Netgate (pfSense)Firewall appliances running pfSense. 15OPNsenseOpen-source firewall platform. GitHub lists release 26.7.7 from October 2026. 16UbiquitiGateways and routers with firewall features. 17SonicWallFirewalls for small business. 18WatchGuardFirewalls for small and mid-size business. 19Fortinet FortiGateFirewalls for business. 20Cisco FirewallsCisco firewall portfolio.

Reviews & Guidance

9 entries

Comparisons and how-to.

21Best Firewall Software (TrustRadius)Reviews of firewall software. 22Best Firewall Solutions (PeerSpot)Peer reviews (formerly IT Central Station). 23Best Firewalls for Small BusinessesBusiness.org review. 24Best Firewall RoutersHighSpeedInternet.com roundup. 25Best Cloud Firewall (TechRadar)TechRadar roundup. 2610 Most Effective Firewall Devices for Home & BusinessAnalytics India Magazine. The page returned a server error on 23 October 2026. 27Installing and Enabling Firewall (Hong Kong InfoSec)Government guidance for individuals. 28NIST SP 800-41 Rev. 1Guidelines on firewalls and firewall policy. 2911 Best Web Application Firewall VendorsRoundup of WAF vendors.

Related Pages

7 entries

Neighbouring pages on this site.

30Firewall TechnologyFirewall concepts and resources. 31Firewall ProvidersEnterprise firewall vendors. 32Anti-Virus ResourcesAntivirus resources. 33Privacy ToolsPrivacy tools directory. 34Wireless SecurityWireless security directory. 35WEP LinksWEP wireless security resources. 36IT SecurityIT security hub.

Frequently Asked Questions

What is a personal firewall?

Software, usually built into the operating system, that controls network connections to and from one device.

Do I need a third-party firewall?

Most people are fine with the built-in Windows or macOS firewall; application firewalls such as GlassWire, Little Snitch or LuLu add outbound control, and a router firewall protects the whole network.

What about small offices?

Use a firewall appliance such as pfSense/Netgate, Ubiquiti, SonicWall, WatchGuard or Fortinet, and follow NIST SP 800-41.

What replaced the older entries?

Dead or outdated links were removed, redirects updated, and standards and current tools added.

How current is this list?

Links were checked in October 2026. Sites that block automated checks are kept and may need a manual click.