http4s/http4s

A minimal, idiomatic Scala interface for HTTP

softwaremill/tapir

Declarative, type-safe web endpoints library

akka/akka-http

The Streaming-first HTTP server/module of Akka

zio/zio-http

A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers

lolgab/snunit

Scala Native HTTP server based on NGINX Unit

spinoco/fs2-http

Http Server and client using fs2

ollls/zio-tls-http

100% non-blocking, Java NIO only( inspired by zio-nio) , JSON HTTP server based on Scala ZIO library. Everything including TLS encryption modeled as ZIO effects, convenient route DSL similar to https4s, up to 30K TPS local JSON transaction with 25 threads on 6 cores(i7) with ZIO fibers.

softwaremill/livestub

The HTTP server stub you always wanted!

line/armeria

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

sake92/sharaf

Minimalistic Scala 3 web framework

sungiant/zenith

:zap: Functional Scala HTTP server, client, and toolkit.

analogweb/analogweb-scala

Tiny High Performance HTTP Server for Scala

ollls/quartz-h2

Asynchronous Java NIO http/2 only packet streaming server with TLS encryption implemented as Scala CATS effect. Direct native translation of fs2 stream chunks into http2 packets ( inbound and outbound ).

fntz/omhs

One More Http Server: Routing DSL on Netty.

ollls/zio-quartz-h2

ZIO2 native, asynchronous Java NIO based implementation of http/2 packet streaming server with TLS encryption implemented as scala ZIO2 effect. Direct native translation of ZIO ZStream chunks into http2 packets (inbound and outbound).

imrafaelmerino/jio

API to work with functional effects in Java