Top 12 Open-Source Alternatives to pfSense

The top open-source alternatives to pfSense are OPNsense, OpenWrt, and FRRouting. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

OPNsense Landing Page
1

OPNsense

OPNsense® you next open source firewall. Free Download. High-end Security Made Easy™. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.
Pricing:
- Open Source
#Operating Systems #Linux #Perimeter Security And Firewalls 94 social mentions
OpenWrt Landing Page
2

OpenWrt

OpenWrt is an open-source firmware based on Linux for wireless routers
Pricing:
- Open Source
#Operating Systems #Routers #Firmware 103 social mentions
FRRouting Landing Page
3

FRRouting

FRRouting (FRR) is an IP routing protocol suite for Linux and Unix platforms which
Pricing:
- Open Source
#Operating Systems #Linux #Network & Admin 12 social mentions
Wazuh Landing Page
4

Wazuh

Open Source Host and Endpoint Security
Pricing:
- Open Source
#Security & Privacy #Security Information And Event Management (SIEM) #Cyber Security 49 social mentions
OpenWISP Landing Page
5

OpenWISP

A software platform to implement a complete public wifi service.
Pricing:
- Open Source
#Operating Systems #Routers #Linux 11 social mentions
FreeRouter Landing Page
6

FreeRouter

freeRouter
Pricing:
- Open Source
#Operating Systems #Linux #Perimeter Security And Firewalls 2 social mentions
Turnkey Linux Landing Page
7

Turnkey Linux

Save time and money with 45+ ready-to-use solutions.
Pricing:
- Open Source
#Cloud Computing #Cloud Storage #Storage 5 social mentions
OpenContrail Landing Page
8

OpenContrail

OpenContrail is an Apache 2.
Pricing:
- Open Source
#Operating Systems #Perimeter Security And Firewalls #Linux
FastNetMon Landing Page
9

FastNetMon

FastNetMon is a very fast DDoS analyzer with sflow/netflow/mirror support.
Pricing:
- Open Source
- Freemium
- Free Trial
- $115.0 / Monthly (for 10G of bandwidth)
#Monitoring Tools #Log Management #Error Tracking 3 social mentions
Diladele Web Safety Landing Page
10

Diladele Web Safety

Diladele Web Safety is the name of a simple, easy to use and powerful web filter for all kind of activities over the internet.
Pricing:
- Open Source
#Security & Privacy #Perimeter Security And Firewalls #Ad Blockers
HackerOne Landing Page
11

HackerOne

HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Pricing:
- Open Source
#Cyber Security #Ethical Hacking #Bug Bounty As A Service 17 social mentions
Denyhosts Landing Page
12

Denyhosts

The idea of denying access to SSH servers is nothing new and I was inspired by many other scripts...
Pricing:
- Open Source
#Monitoring Tools #Cyber Security #Web Application Security