# Top Free Web Application Firewalls (WAF) Check out our list of free Web Application Firewalls (WAF). 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 [Web Application Firewalls (WAF)](https://www.g2.com/categories/web-application-firewall-waf) to ensure you get the right product. ## View Free Web Application Firewalls (WAF) 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). **25** Web Application Firewall (WAF) Products Available View all [Web Application Firewalls (WAF)](https://www.g2.com/categories/web-application-firewall-waf) View all [Web Application Firewalls (WAF)](https://www.g2.com/categories/web-application-firewall-waf) ### [HAProxy](https://www.g2.com/products/haproxy/reviews) [By HAProxy](https://www.g2.com/sellers/haproxy) [ (900)4.7 out of 5 ](https://www.g2.com/products/haproxy/reviews#reviews "Read HAProxy Reviews") Product Description HAProxy is an open-source software load balancer and reverse proxy for TCP, QUIC, and HTTP-based applications. It provides high availability, load balancing, and best-in-class SSL processing. HAPr **Users:** DevOps Engineer, Software Engineer · **Industries:** Information Technology and Services, Computer Software · **Market Segment:** 42% Mid-Market, 36% Enterprise User SentimentHow are these determined? Reviewers appreciate HAProxy's fast and reliable performance, its ability to handle high loads with low latency, advanced features like SSL termination, health checks, session persistence, and its seamless integration with various environments such as on-prem servers, VMs, containers, and Kubernetes setups. Users experienced challenges with HAProxy's complex configuration, steep learning curve, limited native GUI, and debugging difficulty, requiring careful tuning to avoid performance bottlenecks or misconfigurations. Year Founded 2013 HQ Location Newton, MA Company Website https://www.haproxy.com/ Twitter @HAProxy LinkedIn® Page https://www.linkedin.com/company/1032008/ ### [Wallarm API Security Platform](https://www.g2.com/products/wallarm-api-security-platform/reviews) [By Wallarm](https://www.g2.com/sellers/wallarm) [ (96)4.7 out of 5 ](https://www.g2.com/products/wallarm-api-security-platform/reviews#reviews "Read Wallarm API Security Platform Reviews") Product Description Protect any API. In any environment. Against any threats. Wallarm is the platform security teams choose to protect cloud-native APIs. The Wallarm platform gives teams the ability to detect and bloc **Users:** CEO, CTO · **Industries:** Mechanical or Industrial Engineering, Information Technology and Services · **Market Segment:** 44% Mid-Market, 42% Small-Business VS perimeter scanner and attack rechecker allow us to be 100% sure there is no backdoor or unknown entries and every vulnerability is highlighted and...[Read review](https://www.g2.com/products/wallarm-api-security-platform/reviews/wallarm-api-security-platform-review-4823980) DL - Amazing firewall that can work as a standalone proxy server, filter all incoming HTTP requests and block attacks - Supports integration with...[Read review](https://www.g2.com/products/wallarm-api-security-platform/reviews/wallarm-api-security-platform-review-4824758) Year Founded 2016 HQ Location San Francisco, California Company Website https://wallarm.com/ Twitter @wallarm LinkedIn® Page https://www.linkedin.com/company/4871419/ [![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) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) ### [NetScaler](https://www.g2.com/products/netscaler/reviews) [By Cloud Software Group](https://www.g2.com/sellers/cloud-software-group) [ (85)4.4 out of 5 ](https://www.g2.com/products/netscaler/reviews#reviews "Read NetScaler Reviews") Product Description NetScaler is the application delivery and security platform of choice for the world’s largest companies. Thousands of organizations worldwide including eBay, IKEA, and Aria — and more than 90 percent **Industries:** Information Technology and Services, Hospital & Health Care · **Market Segment:** 62% Enterprise, 29% Mid-Market ![Shubham G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Shubham G.") SG The best function of Citrix Web App Firewall is its user friendly interface which enables anyone to use the product hassle free.[Read review](https://www.g2.com/products/netscaler/reviews/netscaler-review-4512097) ![Verified User in Pharmaceuticals](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Pharmaceuticals") UP Application performance acceleration is one of the feature of it.[Read review](https://www.g2.com/products/netscaler/reviews/netscaler-review-4727080) HQ Location Fort Lauderdale, FL Company Website https://www.cloud.com/ Twitter @cloudsoftware LinkedIn® Page https://www.linkedin.com/company/cloudsoftwaregroup/ ### [AppTrana](https://www.g2.com/products/apptrana/reviews) [By Indusface](https://www.g2.com/sellers/indusface) [ (35)4.8 out of 5 ](https://www.g2.com/products/apptrana/reviews#reviews "Read AppTrana Reviews") Product Description AppTrana API is a fully managed API security platform that provides continuous API discovery, automated vulnerability detection, and real-time protection against API attacks. It combines 24/7 AI-drive **Industries:** Computer Software, Information Technology and Services · **Market Segment:** 54% Mid-Market, 23% Enterprise ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care") UH Simple configuration with most of required features like protection from DDoS, SQI injection, Bot attack, at a very affordable price. Simplicity...[Read review](https://www.g2.com/products/apptrana/reviews/apptrana-review-5473442) ![Verified User in Logistics and Supply Chain](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Logistics and Supply Chain") IL The sales and the support is great. Our problem can be resolved in the same day even though we are working in different timezone. Even though we...[Read review](https://www.g2.com/products/apptrana/reviews/apptrana-review-7970724) Year Founded 2012 HQ Location Vadodara Company Website https://www.indusface.com Twitter @Indusface LinkedIn® Page https://www.linkedin.com/company/indusface/ ### [F5 NGINX](https://www.g2.com/products/f5-nginx/reviews) [By F5](https://www.g2.com/sellers/f5-f6451ada-8c47-43f5-b017-58663a045bc5) [ (107)4.6 out of 5 ](https://www.g2.com/products/f5-nginx/reviews#reviews "Read F5 NGINX Reviews") Product Description NGINX, Inc. is the company behind NGINX, the popular open source project trusted by more than 400 million sites. We offer a suite of technologies for developing and delivering modern applications. The **Users:** Software Engineer · **Industries:** Information Technology and Services, Computer Software · **Market Segment:** 42% Small-Business, 40% Mid-Market OP Generate data and documentation, free code to add to the server and organize data in the system, activity control and backup records. Perfect...[Read review](https://www.g2.com/products/f5-nginx/reviews/f5-nginx-review-6721528) RC The tool is very fast and efficient, especially for companies that need to handle high volumes of data in their day-to-day operations. The software...[Read review](https://www.g2.com/products/f5-nginx/reviews/f5-nginx-review-8507939) HQ Location Seattle, Washington Company Website https://f5.com/ Twitter @F5Networks LinkedIn® Page https://www.linkedin.com/company/4841/ ### [Azion](https://www.g2.com/products/azion/reviews) [By Azion](https://www.g2.com/sellers/azion) [ (32)4.7 out of 5 ](https://www.g2.com/products/azion/reviews#reviews "Read Azion Reviews") Product Description Azion is the web platform that enables businesses to build, secure, and scale modern applications on a fully managed global infrastructure, with a robust suite of solutions for Application Development **Industries:** Retail · **Market Segment:** 34% Enterprise, 28% Mid-Market User SentimentHow are these determined? Reviewers like the high reliability, flexibility, and quality of Azion's services, praising its excellent customer service, fast response times, and the autonomy it gives to developers. Users reported that some features in the administration console are not user-friendly, the console interface can be difficult to navigate, and the product lacks features for integration with Web3, NFTs, and related services. Year Founded 2011 HQ Location Palo Alto, California, United States Company Website https://www.azion.com/ LinkedIn® Page https://www.linkedin.com/company/aziontech ### [FortiAppSec Cloud](https://www.g2.com/products/fortiappsec-cloud/reviews) [By Fortinet](https://www.g2.com/sellers/fortinet) [ (31)4.4 out of 5 ](https://www.g2.com/products/fortiappsec-cloud/reviews#reviews "Read FortiAppSec Cloud Reviews") Product Description FortiAppSec Cloud - the next evolution of FortiWeb Cloud - simplifies and strengthens web application security and delivery across your cloud environments. This SaaS platform secures network availabil **Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 61% Mid-Market, 19% Enterprise User SentimentHow are these determined? Users frequently mention the ease of deployment, AI-powered automation, reliable customer support, and the centralized dashboard that improves visibility and response time, as well as the platform's ability to integrate smoothly with existing cloud environments. Reviewers experienced some complexity during the initial setup, particularly when fine-tuning custom security policies, occasional performance dips under high traffic or complex rules, and a lack of flexibility in the reporting features. 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 ### [Fastly's Web Application and API Security](https://www.g2.com/products/fastly-s-web-application-and-api-security/reviews) [By Fastly](https://www.g2.com/sellers/fastly) [ (30)4.2 out of 5 ](https://www.g2.com/products/fastly-s-web-application-and-api-security/reviews#reviews "Read Fastly's Web Application and API Security Reviews") Product Description Fastly’s AppSec solutions empower teams to mitigate threats and control bots while helping the business move faster, confidently. Protect Your Apps and APIs While Accelerating Growth with Fastly’s Nex **Industries:** Computer Software · **Market Segment:** 50% Mid-Market, 37% Enterprise ![Anna b.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Anna b.") AB The Fastly Cloud Security is from a veru strong platform.It is a world iwde distributed web network which provide the strong infrastructure...[Read review](https://www.g2.com/products/fastly-s-web-application-and-api-security/reviews/fastly-s-web-application-and-api-security-review-4402157) ![Verified User in Retail](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Retail") UR First and foremost, they're cost effective and has better rate limiting features compared to WAF. The interface for creating signals and rules are...[Read review](https://www.g2.com/products/fastly-s-web-application-and-api-security/reviews/fastly-s-web-application-and-api-security-review-4634986) Year Founded 2011 HQ Location San Francisco, California, United States Company Website https://www.fastly.com Twitter @Fastly LinkedIn® Page https://www.linkedin.com/company/2602522/ Ownership NYSE: FSLY ### [TR7 ASP](https://www.g2.com/products/tr7-asp/reviews) [By TR7](https://www.g2.com/sellers/tr7) [ (22)4.9 out of 5 ](https://www.g2.com/products/tr7-asp/reviews#reviews "Read TR7 ASP Reviews") Product Description An application security platform (ASP) designed by IT users angry and frustrated with the time-to-manage complex legacy application delivery and WAF products. TR7's friendly design, dynamic flow-panel **Market Segment:** 50% Enterprise, 41% Mid-Market User SentimentHow are these determined? Users frequently mention the product's user-friendly interface, fast performance, and the exceptional responsiveness and helpfulness of the support team. Reviewers mentioned minor bugs in the user interface and the lack of built-in documentation or self-service learning resources for new administrators. Year Founded 2020 HQ Location Ankara, TR Company Website https://tr7.com LinkedIn® Page http://www.linkedin.com/company/tr7-asp ### [Cloudbric](https://www.g2.com/products/cloudbric/reviews) [By Cloudbric](https://www.g2.com/sellers/cloudbric) [ (14)4.3 out of 5 ](https://www.g2.com/products/cloudbric/reviews#reviews "Read Cloudbric Reviews") Product Description Cloudbric is Penta Security's leading brand in the SaaS-type security platform industry. From IoT & End Point security to enterprise web security, Cloudbric provides services safeguarding all enti **Market Segment:** 50% Small-Business, 36% Enterprise ![Verified User in Computer & Network Security](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer & Network Security") AC The free SSL security provided with the product[Read review](https://www.g2.com/products/cloudbric/reviews/cloudbric-review-591896) ![michell h.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "michell h.") MH I really like the protection that cloudbric give me, now I can feel secure and that service for that price is a really good deal that no one should...[Read review](https://www.g2.com/products/cloudbric/reviews/cloudbric-review-818741) Year Founded 1997 HQ Location Seoul, Seoul Company Website https://www.cloudbric.com Twitter @cloudbric LinkedIn® Page https://www.linkedin.com/company/4856095/ ### [Link11](https://www.g2.com/products/link11/reviews) [By Link11](https://www.g2.com/sellers/link11) [ (44)4.7 out of 5 ](https://www.g2.com/products/link11/reviews#reviews "Read Link11 Reviews") Product Description Link11 is a specialized European IT security provider headquartered in Germany, offering a comprehensive suite of cloud-native IT security services designed to help organizations prevent business disr **Industries:** Computer Software, Information Technology and Services · **Market Segment:** 43% Mid-Market, 30% Small-Business ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care") CH Performance, adaptability, support, easy onboarding and use.[Read review](https://www.g2.com/products/link11/reviews/link11-review-6689377) ![Patrick P.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Patrick P.") PP The UI is very rich and easy to use putting at front all what is needed to analyze issues fast , allowing swift responses if needed. The tool...[Read review](https://www.g2.com/products/link11/reviews/link11-review-6968536) HQ Location Frankfurt, DE Company Website https://www.link11.com Twitter @Link11GmbH LinkedIn® Page https://www.linkedin.com/company/link11/ ### [Barracuda Web Application Firewall](https://www.g2.com/products/barracuda-web-application-firewall/reviews) [By Barracuda](https://www.g2.com/sellers/barracuda) [ (14)4.3 out of 5 ](https://www.g2.com/products/barracuda-web-application-firewall/reviews#reviews "Read Barracuda Web Application Firewall Reviews") Product Description Barracuda Web Application Firewall (WAF) is purpose-built to protect your web, mobile, and API applications from today’s most advanced threats. It helps prevent data breaches and ensures business cont **Market Segment:** 64% Mid-Market, 21% Enterprise ![Rokebul I.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Rokebul I.") RI Barracuda waf is available as an appliance or as a vm. Those who want it running with a few clicks, avoiding long waiting period to ship the...[Read review](https://www.g2.com/products/barracuda-web-application-firewall/reviews/barracuda-web-application-firewall-review-4377119) SF Barracuda ATP solution, Vulnerability manager and free defined attack rules is high security solution for the web application owners. When we...[Read review](https://www.g2.com/products/barracuda-web-application-firewall/reviews/barracuda-web-application-firewall-review-4664998) 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 ### [BitNinja](https://www.g2.com/products/bitninja/reviews) [By BitNinja Ltd.](https://www.g2.com/sellers/bitninja-ltd) [ (25)4.6 out of 5 ](https://www.g2.com/products/bitninja/reviews#reviews "Read BitNinja Reviews") Product Description State-of-the-art server security with an all-in-one platform BitNinja offers an advanced server security solution with a proactive and unified system designed to effectively defend against a wide ran **Industries:** Information Technology and Services, Internet · **Market Segment:** 88% Small-Business, 8% Mid-Market ![Alessandro C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Alessandro C.") AC It require almost no modification in your current software and infrastructure, very little impact on performance during normal operation[Read review](https://www.g2.com/products/bitninja/reviews/bitninja-review-3526462) OM Firewalls are a primary line of defense for networked environments. With multiple modules Bitninja offers the best defense currently on the market....[Read review](https://www.g2.com/products/bitninja/reviews/bitninja-review-4372525) Year Founded 2014 HQ Location Debrecen Company Website https://www.bitninja.com Twitter @bitninjaio LinkedIn® Page https://www.linkedin.com/company/9343568/ ### [FortiWeb](https://www.g2.com/products/fortinet-fortiweb/reviews) [By Fortinet](https://www.g2.com/sellers/fortinet) [ (4)4.8 out of 5 ](https://www.g2.com/products/fortinet-fortiweb/reviews#reviews "Read FortiWeb Reviews") Product Description FortiWeb offers the performance, manageability, and broad protection capabilities required to protect modern web applications. It comes in hardware and VM form factors, with the VM available in public **Market Segment:** 75% Mid-Market, 25% Enterprise ES Its graphical management and the handling of logs for troubleshooting.[Read review](https://www.g2.com/products/fortinet-fortiweb/reviews/fortiweb-review-12301190) 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 ### [Arcjet](https://www.g2.com/products/arcjet/reviews) [By Arcjet](https://www.g2.com/sellers/arcjet) [ (2)5.0 out of 5 ](https://www.g2.com/products/arcjet/reviews#reviews "Read Arcjet Reviews") Product Description Arcjet is the runtime security platform that ships with your code. Enforce budgets, stop prompt injection, detect bots, and protect personal information with security building blocks configured in jus **Market Segment:** 100% Small-Business ![Ignacio D.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Ignacio D.") ID The fine-grained bot and AI traffic controls, plus how easily it integrates into a Next.js app on Vercel.[Read review](https://www.g2.com/products/arcjet/reviews/arcjet-review-12190257) ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") UC Easy to implement, has documentation for lots of backends. I integrated with sveltekit and found it easy to figure out.[Read review](https://www.g2.com/products/arcjet/reviews/arcjet-review-12204303) Year Founded 2023 HQ Location New York City, US Company Website https://arcjet.com Twitter @arcjet LinkedIn® Page https://www.linkedin.com/company/arcjet/ [![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) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. 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