Best Free Web Application Firewalls (WAF) 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.

CacheGuard product line is based on a core product called CacheGuard-OS. Once installed on a bare metal or virtual machine, CacheGuard-OS transforms that machine into a powerful network appliance . The resulted appliance can then be implemented as different types of Gateways to Secure & Optimize your network. See below a brief description of all CacheGuard appliances. - Web Gateway: gain control over the Web traffic in your organization & filter unwanted Web traffic in your organization. - UTM (Unified Threat Management) : secure your networks against all kind of threats coming from the internet with a Firewall, an Antivirus at the Gateway, a VPN server and a Filtering proxy. - WAF (Web Application Firewall): block malicious requests on your critical Web applications and protect your business. The WAF integrates OWASP rules with the possibility to design your own custom rules. In addition, an IP reputation based filtering allows you to block IPs listed in real time blacklists. - WAN Optimizer : prioritize your critical network traffic, save your precious bandwidth and get High Availability for your internet access through multiple ISP.

Haltdos ensures the 100% high availability of your website/web services by providing intelligent Web Application Firewall and application DDoS mitigation, Bot Protection, SSL offloading, Load Balancing solution over the public and private cloud that monitors, detects, and automatically mitigates a wide range of cyber-attacks including OWASP top 10 and Zero-day attacks, without requiring any human intervention.

Meet the Industry’s Context-Aware API Security Platform Traceable identifies all of your APIs, and evaluates your API risk posture, stops API attacks that lead to incidents such as data exfiltration, and provides analytics for threat hunting and forensic research. With our solution, you can confidently discover, manage and secure all of your APIs, quickly deploy, and easily scale to meet the ongoing needs of your organization.

We offer the most user-friendly technology without sacrificing performance or features. We back it up with exceptional support and care delivered under a fair, cost-effective pricing model Our technology is used by small startups with big ideas, small budgets, and global enterprises. We love them all! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the only true ADP Application Delivery Platform that allows for the enhancement of functionality and longevity using the app store or apps you create in-house.

Our cloud SWAP has been vetted as one of the best solutions to threats such as cross site scripting (XSS), SQL injections, and Distributed Denial of Service. Cloudbric's logic-based SWAP, which includes pattern matching, semantic, heuristic analysis, and core rulesets, is fully automated and simple to use. This means that there is no need to update security policies or sign signatures often. Private WAF deployments can also be customized with customization options. Our service ensures your website. Your website will remain online and be protected from distributed denial-of-service attacks (DDoS). Cloudbric actively blocks layers 3, 4 and 7 DDoS attacks that can scale up to 20Tbps*

MyDiamo was developed by Penta Security Systems (APAC leader in encryption technology) and is available to all for noncommercial use. Enterprises and organizations who require additional features can obtain a commercial license. Index searching is possible with column-level encryption or partial encryption - Minimal system performance changes guaranteed - Compatible with open-source DBMS such as MySQL, MariaDB and Percona - GDPR/PCI DSS/HIPAA compliant - Code modification is not required, it works parallel at the engine level

DDoS-GUARD has been a leader in the DDoS protection and content delivery market since 2011. We offer services using our own network, which includes scrubbing centers with sufficient computing and channel capacity to process large volumes of traffic. This is a departure from most other companies. We don't resell services from other companies and claim them as our own. Cyber threats are increasing in today's digital world. The number of DDoS attacks is also increasing in line with the latest trends. The attacks become more complex, volumetric, and diverse. We are constantly changing traffic scrubbing algorithms, increasing channel capacities, and adding computational resources to traffic processing centres. This allows us to not only protect our customers from all known DDoS attacks but also detect and block any anomalous network activity that was previously unknown.

open-appsec is an open-source initiative that builds on machine learning to provide pre-emptive web app & API threat protection against OWASP-Top-10 and zero-day attacks. It can be deployed as add-on to Kubernetes Ingress, NGINX, Envoy and API Gateways. The open-appsec engine learns how users normally interact with your web application. It then uses this information to automatically detect requests that fall outside of normal operations, and sends those requests for further analysis to decide whether the request is malicious or not. open-appsec uses two machine learning models: 1. A supervised model that was trained offline based on millions of requests, both malicious and benign. 2. An unsupervised model that is being built in real time in the protected environment. This model uses traffic patterns specific to the environment. open-oppsec simplifies maintenance as there is no threat signature upkeep and exception handling, like common in many WAF solutions.

ArvanCloud CDN consists of tens to PoP sites at important locations around the globe to deliver online content to users, from the nearest geographical point at the highest quality and speed. You can create unlimited cloud servers with ArvanCloud Cloud Computing infrastructure in just a few clicks. You can create multiple cloud storage disks per server and manage your cloud data center communications with Firewall and private or public networks. ArvanCloud allows you secure any type of data stored on Cloud Storage. You can access a reliable storage system anywhere in the world and have no worries about data loss. ArvanCloud Container-Based Platform as a Service conforms to Kubernetes standards. You are only a few commands away from an operational product with ArvanCloud Container-Based Platform as a Service.

BunkerWeb, a Web Application Firewall of the next generation and open source (WAF), is a powerful tool. It is a full-featured server that uses NGINX as its backend. This will make your web services "secure by default". BunkerWeb integrates seamlessly with your existing environments, including Linux, Docker Swarm, Kubernetes ...), and is fully configurable. BunkerWeb makes cybersecurity a breeze. BunkerWeb includes primary security features in its core, but can be easily expanded with additional ones using a plugin system).