# Top Free Firewall Software

Check out our list of free Firewall Software. Products featured on this list are the ones that offer a free trial version. As with most free versions, there are limitations, typically time or features.

If you'd like to see more products and to evaluate additional feature options, compare all [Firewall Software](https://www.g2.com/categories/firewall-software) to ensure you get the right product.

## View Free Firewall Software

G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our [scoring methodologies](https://research.g2.com/g2-scoring-methodologies).

**17** Firewall Software Products Available
View all [Firewall Software](https://www.g2.com/categories/firewall-software)

View all [Firewall Software](https://www.g2.com/categories/firewall-software)

### [Check Point Next Generation Firewalls (NGFWs)](https://www.g2.com/products/check-point-next-generation-firewalls-ngfws/reviews)

[By Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies)

[

(591)4.5 out of 5
](https://www.g2.com/products/check-point-next-generation-firewalls-ngfws/reviews#reviews "Read Check Point Next Generation Firewalls (NGFWs) Reviews")

Product Description

Strengthen Your Security with Check Point Gateways and Firewalls Check Point Hybrid Mesh Network Security is a comprehensive cybersecurity solution designed to protect networks from sophisticated

**Users:** Network Security Engineer, Network Engineer · **Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 44% Mid-Market, 42% Enterprise

User SentimentHow are these determined?

Users like the strong security features, centralized management through SmartConsole, and the integration of threat prevention technologies like IPS, Anti-Bot, and Threat Emulation. Reviewers mentioned issues with SSL/TLS inspection breaking some apps, legal/privacy concerns, and the complexity of configuring policies and advanced filters.

Year Founded
1993

HQ Location
Redwood City, CA

Company Website
https://www.checkpoint.com/

Twitter
@CheckPointSW

LinkedIn® Page
https://www.linkedin.com/company/check-point-software-technologies/

Ownership
NASDAQ:CHKP

### [Netgate pfSense](https://www.g2.com/products/netgate-pfsense/reviews)

[By Netgate](https://www.g2.com/sellers/netgate)

[

(326)4.7 out of 5
](https://www.g2.com/products/netgate-pfsense/reviews#reviews "Read Netgate pfSense Reviews")

Product Description

pfSense® Plus software is the world’s most trusted firewall. The software has garnered the respect and adoration of users worldwide - installed well over three million times. Made possible by open sou

**Users:** Network Engineer · **Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 68% Small-Business, 26% Mid-Market

 ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications")
AT

Stable routing and firewall solution, supporting HA, IPv4+6, boot environments, multiple routing alternatives, DoH and DoT, Wireguard and other VPN...[Read review](https://www.g2.com/products/netgate-pfsense/reviews/netgate-pfsense-review-9347413)

 ![Emmanuel G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Emmanuel G.")
EG

The first upside of using pfSense is of course the ease of use, and the great interface. It may not be as complete as what Palo Alto offers for...[Read review](https://www.g2.com/products/netgate-pfsense/reviews/netgate-pfsense-review-9353748)

Year Founded
2002

HQ Location
Austin, US

Company Website
https://www.netgate.com

Twitter
@NetgateUSA

LinkedIn® Page
https://www.linkedin.com/company/netgate/

[![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source)

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### [FortiGate-VM NGFW](https://www.g2.com/products/fortigate-vm-ngfw/reviews)

[By Fortinet](https://www.g2.com/sellers/fortinet)

[

(232)4.6 out of 5
](https://www.g2.com/products/fortigate-vm-ngfw/reviews#reviews "Read FortiGate-VM NGFW Reviews")

Product Description

FortiGate-VM is a virtual firewall solution designed to help users secure their cloud environments and on-premises networks. As a next-generation firewall developed by Fortinet, FortiGate-VM integrate

**Users:** Network Engineer, IT Manager · **Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 63% Mid-Market, 22% Enterprise

 ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications")
CT

The best thing about Fortigate VM is its solid working model and high-performance security. It can be deployed across different cloud environments,...[Read review](https://www.g2.com/products/fortigate-vm-ngfw/reviews/fortigate-vm-ngfw-review-12179991)

YN

I like how FortiGate-VM NGFW combines enterprise-grade security with flexibility for virtual and cloud environments. It stands out with its...[Read review](https://www.g2.com/products/fortigate-vm-ngfw/reviews/fortigate-vm-ngfw-review-12441420)

Year Founded
2000

HQ Location
Sunnyvale, CA

Company Website
https://www.fortinet.com

Twitter
@Fortinet

LinkedIn® Page
https://www.linkedin.com/company/6460/

Ownership
NASDAQ: FTNT

### [Check Point Cloud Firewall (formerly CloudGuard Network Security)](https://www.g2.com/products/check-point-cloud-firewall-formerly-cloudguard-network-security/reviews)

[By Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies)

[

(291)4.4 out of 5
](https://www.g2.com/products/check-point-cloud-firewall-formerly-cloudguard-network-security/reviews#reviews "Read Check Point Cloud Firewall (formerly CloudGuard Network Security) Reviews")

Product Description

CloudGuard Network Security is a comprehensive cloud security solution designed to protect public, private, and hybrid cloud environments from a wide array of cyber threats. This platform focuses on d

**Users:** Security Engineer, Network Security Engineer · **Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 40% Enterprise, 34% Mid-Market

 ![Verified User in Computer & Network Security](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer & Network Security")
IC

What I like most about Check Point CloudGuard Network Security is how it delivers consistent, enterprise-grade security controls across multi-cloud...[Read review](https://www.g2.com/products/check-point-cloud-firewall-formerly-cloudguard-network-security/reviews/check-point-cloud-firewall-formerly-cloudguard-network-security-review-12257829)

 ![Verified User in Accounting](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Accounting")
AA

Its seamless integration with major cloud platforms, strong threat prevention, and centralized management that simplifies securing multi-cloud...[Read review](https://www.g2.com/products/check-point-cloud-firewall-formerly-cloudguard-network-security/reviews/check-point-cloud-firewall-formerly-cloudguard-network-security-review-12347615)

Year Founded
1993

HQ Location
Redwood City, CA

Company Website
https://www.checkpoint.com/

Twitter
@CheckPointSW

LinkedIn® Page
https://www.linkedin.com/company/check-point-software-technologies/

Ownership
NASDAQ:CHKP

### [Palo Alto Networks Cloud NGFW](https://www.g2.com/products/palo-alto-networks-cloud-ngfw/reviews)

[By Palo Alto Networks](https://www.g2.com/sellers/palo-alto-networks)

[

(108)4.3 out of 5
](https://www.g2.com/products/palo-alto-networks-cloud-ngfw/reviews#reviews "Read Palo Alto Networks Cloud NGFW Reviews")

Product Description

Palo Alto Networks Cloud NGFW is a fully managed, cloud-native firewall service designed to enhance security, streamline operations, and provide seamless scalability across various cloud environments,

**Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 34% Enterprise, 34% Mid-Market

 ![Daniel L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Daniel L.")
DL

The integration with other products in order to secure my environment.[Read review](https://www.g2.com/products/palo-alto-networks-cloud-ngfw/reviews/palo-alto-networks-cloud-ngfw-review-10708364)

 ![Verified User in Computer & Network Security](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer & Network Security")
UC

NGFW (Next-Generation Firewall) has amazing security capabilities and features for cloud environments. Ease of Use, Implementation &...[Read review](https://www.g2.com/products/palo-alto-networks-cloud-ngfw/reviews/palo-alto-networks-cloud-ngfw-review-10711305)

Year Founded
2005

HQ Location
Santa Clara, CA

Company Website
https://www.paloaltonetworks.com

Twitter
@PaloAltoNtwks

LinkedIn® Page
https://www.linkedin.com/company/30086/

Ownership
NYSE: PANW

### [Cloudflare One (SASE)](https://www.g2.com/products/cloudflare-one-sase/reviews)

[By Cloudflare, Inc.](https://www.g2.com/sellers/cloudflare-inc)

[

(105)4.6 out of 5
](https://www.g2.com/products/cloudflare-one-sase/reviews#reviews "Read Cloudflare One (SASE) Reviews")

Product Description

Cloudflare One is a single-vendor secure access service edge (SASE) platform that converges security and networking services into a unified, global connectivity cloud. It replaces legacy, fragmented h

**Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 37% Small-Business, 34% Mid-Market

 ![Verified User in Business Supplies and Equipment](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Business Supplies and Equipment")
UB

Cloudflare One impresses with its security and performance enhancements. It's user-friendly and reliable, and the remote work support is...[Read review](https://www.g2.com/products/cloudflare-one-sase/reviews/cloudflare-one-sase-review-8716344)

 ![Marcus T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Marcus T.")
MT

Love the advanced DNS management tools Cloudflare provides and its very eas to learn and use. It also stands out a premier SSE solution due to its...[Read review](https://www.g2.com/products/cloudflare-one-sase/reviews/cloudflare-one-sase-review-9376714)

Year Founded
2009

HQ Location
San Francisco, California

Company Website
https://www.cloudflare.com

Twitter
@Cloudflare

LinkedIn® Page
https://www.linkedin.com/company/407222/

Ownership
NYSE: NET

### [CrowdSec](https://www.g2.com/products/crowdsec/reviews)

[By CrowdSec](https://www.g2.com/sellers/crowdsec)

[

(88)4.7 out of 5
](https://www.g2.com/products/crowdsec/reviews#reviews "Read CrowdSec Reviews")

Product Description

CrowdSec is an open-source security stack that detects aggressive behaviors and prevents them from accessing your systems. Its user-friendly design and ease of integration into your current security i

**Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 69% Small-Business, 20% Mid-Market

HH

It is easy to use and there are already many extensions for the most popular software products. Crowdsec is at home on all the latest operating...[Read review](https://www.g2.com/products/crowdsec/reviews/crowdsec-review-8185369)

 ![AJ T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "AJ T.")
AT

Relatively easy to set up on individual servers and provides excellent front-line protection for web applications, including WordPress. It also...[Read review](https://www.g2.com/products/crowdsec/reviews/crowdsec-review-8185523)

Year Founded
2020

HQ Location
Paris, FR

Company Website
https://crowdsec.net

Twitter
@Crowd\_Security

LinkedIn® Page
https://www.linkedin.com/company/crowdsec/?originalSubdomain=fr

### [Avast Small Business Cybersecurity](https://www.g2.com/products/avast-small-business-cybersecurity/reviews)

[By Gen Digital](https://www.g2.com/sellers/gen-digital)

[

(102)4.4 out of 5
](https://www.g2.com/products/avast-small-business-cybersecurity/reviews#reviews "Read Avast Small Business Cybersecurity Reviews")

Product Description

Avast delivers all-in-one cybersecurity solutions, protecting over 400 million users. Our Endpoint Protection solutions like Next-gen Antivirus and automated Patch Management work together to protect

**Industries:** Information Technology and Services, Computer Software · **Market Segment:** 63% Small-Business, 25% Mid-Market

AI

Avast Endpoint Protection is one of the best I have used, and for some good reasons. First, this tool is affordable, unlike the competition on the...[Read review](https://www.g2.com/products/avast-small-business-cybersecurity/reviews/avast-small-business-cybersecurity-review-4865466)

 ![Verified User in Accounting](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Accounting")
AA

The best part of Avast Endpoint Protection is the set-and-forget aspect of the entire system.[Read review](https://www.g2.com/products/avast-small-business-cybersecurity/reviews/avast-small-business-cybersecurity-review-4887042)

Year Founded
2022

HQ Location
Tempe, Arizona

Company Website
https://www.gendigital.com/

Twitter
@GenDigitalInc

LinkedIn® Page
https://www.linkedin.com/company/gendigitalinc

Ownership
NASDAQ: GEN

### [B1 Platform by CloudCover](https://www.g2.com/products/b1-platform-by-cloudcover/reviews)

[By CloudCover, Inc.](https://www.g2.com/sellers/cloudcover-inc)

[

(44)4.6 out of 5
](https://www.g2.com/products/b1-platform-by-cloudcover/reviews#reviews "Read B1 Platform by CloudCover Reviews")

Product Description

A network security platform, years in the making, leveraging mathematics to continuously learn, predict, and defend against attacks.

**Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 39% Small-Business, 39% Mid-Market

 ![Verified User in Education Management](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Education Management")
UE

I personally adore the easy layout and how user-friendly the whole platform is. It is a reliable network security system for your data as an...[Read review](https://www.g2.com/products/b1-platform-by-cloudcover/reviews/b1-platform-by-cloudcover-review-9843750)

 ![NAYAN K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "NAYAN K.")
NK

It's reliable and the security that we need these days are getting challenging day by day. So platform like B1 assist a lot in security space.[Read review](https://www.g2.com/products/b1-platform-by-cloudcover/reviews/b1-platform-by-cloudcover-review-9914937)

Year Founded
2007

HQ Location
Minneapolis, US

Company Website
https://cloudcover.cc/

LinkedIn® Page
https://www.linkedin.com/company/1642753

### [Arista NG Firewall](https://www.g2.com/products/arista-ng-firewall/reviews)

[By Arista Networks](https://www.g2.com/sellers/arista-networks-39d4d864-54b5-4f9b-bebc-dc5cf72757ca)

[

(17)4.7 out of 5
](https://www.g2.com/products/arista-ng-firewall/reviews#reviews "Read Arista NG Firewall Reviews")

Product Description

NG Firewall simplifies network security with a single, modular, software platform that provides a browser-based, responsive and intuitive interface enabling you to quickly gain visibility into the tra

**Market Segment:** 59% Small-Business, 41% Mid-Market

 ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care")
AH

Simple to use Graphical Interface makes this very powerful. The base functions are Free then you purchase additional apps or pay for the full...[Read review](https://www.g2.com/products/arista-ng-firewall/reviews/arista-ng-firewall-review-1671370)

 ![Nathan J.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nathan J.")
NJ

Easy to install and use, lots of control. Automated configuration backups, tons of reports for data collection.[Read review](https://www.g2.com/products/arista-ng-firewall/reviews/arista-ng-firewall-review-4270765)

Year Founded
2004

HQ Location
Santa Clara, US

Company Website
https://edge.arista.com/

Twitter
@arista\_channels

LinkedIn® Page
https://www.linkedin.com/company/80069/

Ownership
NYSE:ANET

### [FortiGate Cloud-Native Firewall (CNF)](https://www.g2.com/products/fortigate-cloud-native-firewall-cnf/reviews)

[By Fortinet](https://www.g2.com/sellers/fortinet)

[

(13)4.3 out of 5
](https://www.g2.com/products/fortigate-cloud-native-firewall-cnf/reviews#reviews "Read FortiGate Cloud-Native Firewall (CNF) Reviews")

Product Description

FortiGate CNF is an enterprise-grade cloud-native firewall delivered as a service. It automatically scales protection to meet the dynamic demands of your cloud environments to prevent threats such as

**Market Segment:** 46% Mid-Market, 31% Enterprise

 ![Verified User in Computer & Network Security](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer & Network Security")
UC

Fortigate cloud native Firewall makes us to easy to integrate with any other cloud provider aws or gcp and it also has advance threat protection...[Read review](https://www.g2.com/products/fortigate-cloud-native-firewall-cnf/reviews/fortigate-cloud-native-firewall-cnf-review-10069774)

 ![Verified User in Computer & Network Security](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer & Network Security")
UC

It's advance network protection and cost effectiveness[Read review](https://www.g2.com/products/fortigate-cloud-native-firewall-cnf/reviews/fortigate-cloud-native-firewall-cnf-review-10073503)

Year Founded
2000

HQ Location
Sunnyvale, CA

Company Website
https://www.fortinet.com

Twitter
@Fortinet

LinkedIn® Page
https://www.linkedin.com/company/6460/

Ownership
NASDAQ: FTNT

### [Barracuda for MSPs](https://www.g2.com/products/barracuda-for-msps/reviews)

[By Barracuda](https://www.g2.com/sellers/barracuda)

[

(47)4.1 out of 5
](https://www.g2.com/products/barracuda-for-msps/reviews#reviews "Read Barracuda for MSPs Reviews")

Product Description

Barracuda MSP is designed to manage how IT providers deploy data protection strategries to SMB customers.

**Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 79% Small-Business, 15% Mid-Market

 ![Jim B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Jim B.")
JB

The product is great. We've had great success with file-level, SQL and VMware backups. [Read review](https://www.g2.com/products/barracuda-for-msps/reviews/barracuda-for-msps-review-208772)

 ![Martin H.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Martin H.")
MH

I had planned to use Intronis for backing up mainly stations user data and servers critical data for offsite storage. Marketing materials really...[Read review](https://www.g2.com/products/barracuda-for-msps/reviews/barracuda-for-msps-review-214096)

Year Founded
2002

HQ Location
Campbell, CA

Company Website
https://www.barracuda.com

Twitter
@Barracuda

LinkedIn® Page
https://www.linkedin.com/company/barracuda-networks/

Ownership
Private

### [DiscrimiNAT Firewall](https://www.g2.com/products/discriminat-firewall/reviews)

[By Chaser Systems](https://www.g2.com/sellers/chaser-systems)

[

(3)4.8 out of 5
](https://www.g2.com/products/discriminat-firewall/reviews#reviews "Read DiscrimiNAT Firewall Reviews")

Product Description

The DiscrimiNAT Firewall is a transparent, proxy-less Managed NAT alternative to discover & filter egress traffic by FQDNs in a Shared VPC. It's built upon our cutting-edge technology, Wormhole

**Market Segment:** 67% Enterprise, 33% Mid-Market

 ![Paul S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Paul S.")
PS

We really like the speed and simplicity of deployment using Terraform with the vendor-supplied modules, no need for console access, and...[Read review](https://www.g2.com/products/discriminat-firewall/reviews/discriminat-firewall-review-5134222)

 ![Verified User in Manufacturing](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Manufacturing")
AM

We like the fact that DiscrimiNAT is doing FQDN filtering on SNI while being a transparent proxy, that it integrates with native firewall rules on...[Read review](https://www.g2.com/products/discriminat-firewall/reviews/discriminat-firewall-review-10864251)

Year Founded
2019

HQ Location
Cambridge, GB

Company Website
https://chasersystems.com/

Twitter
@ChaserSystems

LinkedIn® Page
https://www.linkedin.com/company/chasersystems/

### [enforza Firewall & Secure NAT Gateway](https://www.g2.com/products/enforza-firewall-secure-nat-gateway/reviews)

[By enforza](https://www.g2.com/sellers/enforza)

[
0 ratings
](https://www.g2.com/products/enforza-firewall-secure-nat-gateway/reviews#reviews "Read enforza Firewall & Secure NAT Gateway Reviews")

Product Description

Enforza — cloud-managed firewall and secure NAT gateway Enforza is a cloud-managed firewall and secure NAT gateway that gives cloud, platform and security teams the same L3/L4/L7 egress control and s

Year Founded
2023

HQ Location
London, GB

Company Website
https://enforza.io

LinkedIn® Page
http://linkedin.com/company/enforzaplatform

### [OneFirewall](https://www.g2.com/products/onefirewall/reviews)

[By OneFirewall Alliance](https://www.g2.com/sellers/onefirewall-alliance)

[
0 ratings
](https://www.g2.com/products/onefirewall/reviews#reviews "Read OneFirewall Reviews")

Product Description

OneFirewall Alliance is a UK-based cybersecurity company headquartered in London. It operates a crowd-sourced Cyber Threat Intelligence (CTI) platform built on an alliance of 180+ organisations worldw

Year Founded
2018

HQ Location
London, GB

Company Website
https://onefirewall.com

LinkedIn® Page
https://www.linkedin.com/company/onefirewall-alliance/

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Learn More
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