Open Source Alternatives to AWS WAF

A web application firewall that protects web applications and APIs from common exploits. The product allows users to create security rules to filter web requests based on IP addresses, HTTP headers, and custom URIs to block attack patterns such as SQL injection and cross-site scripting. It includes capabilities for monitoring and rate-limiting bot traffic, preventing account takeover fraud, and providing automatic layer 7 DDoS protection. The service is deployed as a cloud-based security layer that integrates with Amazon CloudFront, Application Load Balancer, Amazon API Gateway, and AWS AppSync. It is designed for developers and security administrators to manage web traffic and monetize AI bot access.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to AWS WAF give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to AWS WAF. The most popular is SafeLine. It uses the GPL-3.0 license and ships an official Docker image.