scalatra/scalatra

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

circe/circe

Yet another JSON library for Scala

json4s/json4s

A single AST to be used by other scala json libraries

non/jawn

Jawn is for parsing jay-sawn (JSON)

hseeberger/akka-http-json

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

playframework/play-json

The Play JSON library

finagle/finch

Scala combinator library for building Finagle HTTP services

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

jto/validation

validation api extracted from play

xuwei-k/httpz

purely functional http client with scalaz.Free

mdedetrich/scalajson

ScalaJSON - JSON for Scala, currently contains minimal AST

pathikrit/dijon

A Dynamically Typed Scala Json Library

julienrf/play-json-derived-codecs

agourlay/cornichon

Scala DSL for testing HTTP JSON API

nevillelyh/protobuf-generic

Generic protobuf manipulation

jilen/play-circe

circe for play

sciss/play-json-sealed

Automatic sealed traits JSON format for play-json-alone

outr/profig

Powerful configuration management for Scala (JSON, properties, command-line arguments, and environment variables)

kakao/mango

Core utility library & data connectors designed for simpler usage in Scala