circe/circe

Yet another JSON library for Scala

json4s/json4s

A single AST to be used by other scala json libraries

scalatra/scalatra

Tiny Scala high-performance, async web framework, inspired by Sinatra

argonaut-io/argonaut

Purely functional JSON parser and library in scala.

hseeberger/akka-http-json

Integrate some of the best JSON libs in Scala with Akka HTTP

finagle/finch

Scala combinator library for building Finagle HTTP services

non/jawn

Jawn is for parsing jay-sawn (JSON)

spray/spray-json

A lightweight, clean and simple JSON implementation in Scala

skinny-framework/skinny-micro

:microphone: Micro Web framework to build Servlet applications in Scala, the core part of Skinny Framework 2

gnieh/diffson

A scala diff/patch library for Json

wvlet/airframe

Lightweight Building Blocks for Scala

circe/circe-derivation

Fast type class instance derivation for circe

julienrf/play-json-derived-codecs

ngs-doo/dsl-json

High performance JVM JSON library

jto/validation

validation api extracted from play

agourlay/cornichon

Scala DSL for testing HTTP JSON API

xuwei-k/httpz

purely functional http client with scalaz.Free

pathikrit/dijon

A Dynamically Typed Scala Json Library

ovotech/kafka-serialization

Lego bricks to build Apache Kafka serializers and deserializers

tethys-json/tethys

AST free JSON library for Scala