Best Free Firewall Software of 2024

Cloudflare is the foundation of your infrastructure, applications, teams, and software. Cloudflare protects and ensures the reliability and security of your external-facing resources like websites, APIs, applications, and other web services. It protects your internal resources, such as behind-the firewall applications, teams, devices, and devices. It is also your platform to develop globally scalable applications. Your website, APIs, applications, and other channels are key to doing business with customers and suppliers. It is essential that these resources are reliable, secure, and performant as the world shifts online. Cloudflare for Infrastructure provides a complete solution that enables this for everything connected to the Internet. Your internal teams can rely on behind-the-firewall apps and devices to support their work. Remote work is increasing rapidly and is putting a strain on many organizations' VPNs and other hardware solutions.

NextDNS protects against all types of security threats, blocks trackers and ads on websites and apps, and provides a safe and supervised Internet experience for children, on all devices and across all networks. You can define your threat model and adjust your security strategy by activating 10+ types of protections. The most trusted threat intelligence feeds contain millions of malicious domains and are all updated in real time. We analyze DNS questions and answers in real-time, allowing us to detect and block malicious behaviour. Our threat intelligence system can catch malicious domains faster than traditional security solutions, with typically only a few hours between domain registrations and the beginning of an attack. Block trackers and ads on websites and apps, even the most malicious. Block the most popular ads and trackers blocklists. Millions of domains are all kept up-to-date in real time.

IPFire is an open-source firewall that uses Linux. It is robust, flexible, and state-of the-art. It is easy to use, highly performant in any scenario, extensibility, and simplicity make it accessible for everyone. IPFire places security at the top of its priorities. It is designed to prevent attacks from the Internet by preventing attacks on your network. It protects your network from attacks from the Internet and denial of service attacks with its powerful firewall engine and intrusion detection system. IPFire is a free software program that was developed by an open-source community and trusted by thousands of users around the globe. IPFire's primary goal is security. It is easy to set up a firewall engine. An intrusion prevention system prevents any attackers from entering your network. The default configuration divides the network into zones with different security policies, such as a LAN or DMZ. This allows you to manage the risks within the network and create a customized configuration for your specific needs.

The pfSense project provides a free network firewall distribution. It is based on FreeBSD's operating system with a custom kernel. Third-party free software packages are also included. The package system allows pfSense software to offer the same functionality as or more common commercial firewalls without any artificial limitations. It has replaced every major commercial firewall in many installations around the globe, including Check Point and Cisco PIX, Cisco ASA and Juniper.

Monitor the volume of data your PC is using for every single app, thanks to GlassWire's network monitoring graph. Keep track of the volume of data you received and sent in the past and who or what your PC is talking to. Detect spyware, malware, badly behaving apps, and bandwidth hogs, then block their connections with our powerful firewall. Monitor devices on your network and get alerted when new unknown devices join your WiFi. GlassWire warns you of network-related changes to your PC or unusual changes to your apps that could indicate malware.

Simple packet filters will soon be a thing of history. Even the open-source community is moving toward Next-Generation Firewalls. OPNsense, a leader in intrusion detection, web filtering and anti-virus, is also a leading player. No network is too small to be targeted by an attacker. Even home networks, washing machine, and smartwatches, are at risk and require a safe environment. Firewalls are an important part of the security concept. They protect computers and networks from known and unknown threats. A firewall will offer the best protection if it is easy to use, has well-known functions, and is placed in the right place. OPNsense takes on the challenge of meeting these criteria and does so in different ways. This book is an ideal companion to help you understand, install and set up an OPNsense Firewall.

Comodo Advanced Endpoint Protection is a state of the art anti-malware suite. It proactively protects servers, workstations and laptops. It also offers advanced, real-time management, control and monitoring over critical system resources. Comodo ESM provides unparalleled endpoint protection for Microsoft Windows Servers, Desktops, Laptops, and Tablets. The Comodo Endpoint Security Suite provides 5 layers of protection (Antivirus, Firewall and Host Intrusion Prevention), right at the point of impact - on the desktop environment. Its groundbreaking auto-sandbox technology prevents malware outbreaks and operating-system contamination by running untrusted processes in an isolated environment. Comodo's managed anti-malware solution is the only one that can provide a $5,000 limited warranty against infection.

Sophos UTM increases threat prevention to unmatched levels. The deep learning neural network that is part of Sophos Sandstorm's artificial intelligence detects known and unknown malware, without the need for signatures. Sophos UTM 9.4 was the first product to feature our next-generation cloud sandboxing technology. Sandstorm offers a new level of ransomware protection and targeted attack protection. It can identify evasive threats quickly and accurately before they reach your network. It's an enterprise-grade protection solution without the complexity or price tag.

Neustar UltraDNS, a cloud-based authoritative DNS service for enterprises, securely delivers accurate and fast query responses to websites and other important online assets. An enterprise grade, managed authoritative DNS service that guarantees 100% website availability and has built-in security to provide superior protection. As Internet users expect seamless, secure online experiences, DNS management has become more complicated and difficult in a connected world. Businesses are struggling to find the right DNS strategy for their IT needs due to the emergence of IoT devices. It is almost impossible to have the expertise and resources necessary to properly manage and implement a strategy that meets today's Internet needs. Your website and other online assets should always be available. UltraDNS is a global platform that offers a 100% uptime guarantee and industry-leading SLAs.

Open source software and a universal router are key to democratizing the way we access networks. VyOS' vision is to revolutionize how we access networks, so that everyone can build the solutions they have always wanted, without limitations, restrictions, or prohibitive prices. We believe that internet access is just as important to human development as food, water, air, and healthcare. VyOS was founded by engineers for engineers. It is an open-source software company that makes it possible to access networks without restrictions or prohibitive fees. Through our open-source software and virtual platforms, we do this as VyOS. Stateful firewalls, zone based firewall, all types source and destination NAT (one-to-one, one-to many, many to many). For auditing, creating customized images and contributing, everyone has access to the entire codebase and build toolchain.

Xvirus Firewall is a simple application that allows the user to monitor all active connections and manage who has access. Xvirus Firewall relies on whitelisting or blacklisting to manage connections. There are no parameters to be set up, nor any other assessment capabilities that can determine the legitimacy or authenticity of a connection. Xvirus Firewall is easy enough for beginners and sophisticated enough for more experienced users. You can either install it and forget about it, or you can modify the settings to make your experience more personalized. Either way, you are assured of security. Xvirus' Network Monitor allows you to see all details about your applications' connections, including the protocol, IP, port, status, and process id. Xvirus Firewall allows for you to control which programs are running on your computer. You can manage which programs should be allowed or blocked using the simple rules list.

Guardian is the most secure and safest way to protect your privacy while browsing the internet on your iOS device and using apps. Your IP address will not be visible on any websites you visit because traffic is routed through our firewall servers. This makes it harder for advertisers to track your location. Strong AES256 encryption will protect your password, financial information, and other sensitive data wherever you go. Guardian adds an extra layer to your outgoing network traffic and filters junk out to improve your mobile experience. You can grant permissions to certain apps on your device and know that any attempt to send data will be blocked to unwelcome trackers. Unwanted connections to mail trackers and generic data trackers are blocked.

Azure Firewall, a cloud-based managed network security service, protects your Azure Virtual Network resources. It is a fully-stateful firewall that provides unrestricted cloud scaling and high availability.

Google Cloud firewalls are fully embedded within the cloud networking fabric. They are highly scalable and granular to meet each enterprise's security needs. Flexible and customizable Protect your organization, folder and project with flexible control over firewall rules. Visibility and optimization Get insights into firewall rule usage and optimization options to help you keep deployments safe and manageable. Granular controls Use network tags and service accounts for granular control of both east-west and north-south traffic.

CrowdSec, a free, open-source, and collaborative IPS, analyzes behaviors, responds to attacks, and shares signals across the community. It outnumbers cybercriminals. Create your own intrusion detection system. To identify cyber threats, you can use behavior scenarios. You can share and benefit from a crowdsourced, curated cyber threat intelligence platform. Define the type and location of the remediation you wish to apply. Use the community's IP blocklist to automate your security. CrowdSec can be run on containers, virtual machines, bare metal servers, containers, or directly from your code using our API. Our cybersecurity community is destroying cybercriminals' anonymity. This is our strength. You can help us create and distribute a qualified IP blocklist that protects everyone by sharing IP addresses you have been annoyed by. CrowdSec can process massive amounts of logs faster than Fail2ban, and is 60x faster than Fail2ban.

AP Lens is a Sandbox browser that isolates networks by using DNS Whitelisting. We stop the attack before it reaches your network. What does AP Lens offer? Web Filtering: Flexible, user-friendly content blocking. Anti-Phishing - Stop looking-alike domains with 100% accuracy Ransomware Protection: Protect your network from hackers without affecting your business applications. Secure Remote Work: Use VPN to enforce internet usage policies. AP Lens Augmented whitelist: No more 0-Day Attacks - Compliance: AP Lens meets the regulatory requirements of cybersecurity insurance policies. - One-Click Installation - No need to set up or update the user's computer. - No Maintenance: Stop malware or phishing without constant monitoring Our team has over 20 years of combined experience in cyber security, cloud security and information protection in various industries, such as the private sector and public sector.

m0n0wall aims to create a complete embedded firewall software package which, when used with an embedded PC (free software), provides all the features of commercial firewalls (including ease-of-use) at a fraction the price. m0n0wall runs on a stripped-down version of FreeBSD with a PHP web server and a few utilities. To keep things transparent, the entire system configuration is stored as a single XML file. m0n0wall may be the first UNIX-based system to have its boot-time configuration done using PHP rather than the usual scripts. It also stores the entire system configuration in XML.