[[spring-web-reactive]] = Web on Reactive Stack This part of the documentation covers support for reactive-stack web applications built on a {reactive-streams-site}/[Reactive Streams] API to run on non-blocking servers, such as Netty, Undertow, and Servlet containers. Individual chapters cover the xref:web/webflux.adoc#webflux[Spring WebFlux] framework, the reactive xref:web/webflux-webclient.adoc[`WebClient`], support for xref:web/webflux-test.adoc[testing], and xref:web/webflux-reactive-libraries.adoc[reactive libraries]. For Servlet-stack web applications, see xref:web.adoc[Web on Servlet Stack].