Find Open-Source Alternatives
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Discover powerful open-source replacements for popular commercial software. Save on costs, gain transparency, and join a community of developers.
Compare community-driven replacements for Azure Web Application Firewall in waf & api security workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.
These projects match the most common migration paths for teams replacing Azure Web Application Firewall.
Why teams pick it
Control your scheduling stack on your own infrastructure.
Run on infrastructure you control
Recent commits in the last 6 months
MIT, Apache, and similar licenses
Counts reflect projects currently indexed as alternatives to Azure Web Application Firewall.
Why teams pick it
Supports Linux, Docker, Swarm, and Kubernetes
High-performance, language-agnostic security engine for web traffic
Why teams choose it
Watch for
Requires separate connector projects for each web server
Migration highlight
Integrate WAF into a custom C++ microservice
Real-time request inspection using SecRules without an external web server module
Self‑hosted WAF that shields web apps from attacks
Secure your web services by default with a flexible WAF
Industrial‑grade AI‑powered WAF with zero‑day defense and scalable protection
High-performance Go-based WAF compatible with OWASP CRS v4
Advanced, customizable WAF middleware for Caddy web server
Teams replacing Azure Web Application Firewall in waf & api security workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.
Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from Azure Web Application Firewall.
Why teams choose it
Watch for
Requires own infrastructure and maintenance
Migration highlight
E‑commerce checkout protection
Blocks injection attacks, reducing fraud and downtime
Why teams choose it
Watch for
Advanced PRO features require a paid license
Migration highlight
Protect public‑facing website
Automatic HTTPS, security headers, and bot challenges block attacks without manual rule creation.
Why teams choose it
Watch for
Requires a pure Linux x86_64 environment
Migration highlight
E‑commerce site zero‑day protection
Automatic detection blocks SQL injection and XSS attacks with <0.1% false positives
Why teams choose it
Watch for
Some integrations (HAProxy, C library, RuiQi) are still experimental
Migration highlight
Embedding Coraza in a Go microservice
Provides request‑level inspection and automatic blocking of OWASP Top Ten attacks.
Why teams choose it
Watch for
Requires Caddy build with module
Migration highlight
Prevent brute‑force login attempts
Rate limiting blocks excessive requests to authentication endpoints, reducing credential stuffing.