scalalandio/chimney

Scala library for boilerplate-free, type-safe data transformations

typelevel/simulacrum

First class syntax support for type classes in Scala

jaliss/securesocial

A module that provides OAuth, OAuth2 and OpenID authentication for Play Framework applications

polynote/polynote

A better notebook for Scala (and more)

sscarduzio/elasticsearch-readonlyrest-plugin

Free Elasticsearch security plugin and Kibana security plugin: super-easy Kibana multi-tenancy, Encryption, Authentication, Authorization, Auditing

typelevel/squants

The Scala API for Quantities, Units of Measure and Dimensional Analysis

lightbend-labs/scala-logging

Convenient and performant logging library for Scala wrapping SLF4J.

joernio/joern

Open-source code analysis platform for C/C++/Java/Binary/Javascript/Python/Kotlin based on code property graphs. Discord https://discord.gg/vv4MH284Hc

reactivex/rxscala

RxScala – Reactive Extensions for Scala – a library for composing asynchronous and event-based programs using observable sequences

eaplatanios/tensorflow_scala

TensorFlow API for the Scala Programming Language

nscala-time/nscala-time

A new Scala wrapper for Joda Time based on scala-time

com-lihaoyi/fastparse

Writing Fast Parsers Fast in Scala

scalaj/scalaj-http

Simple scala wrapper for HttpURLConnection. OAuth included.

ghostdogpr/caliban

Functional GraphQL library for Scala

typelevel/kind-projector

Compiler plugin for making type lambdas (type projections) easier to write

typelevel/frameless

Expressive types for Spark.

reactivemongo/reactivemongo

:leaves: Non-blocking, Reactive MongoDB Driver for Scala

tminglei/slick-pg

Slick extensions for PostgreSQL

playframework/play-slick

Slick Plugin for Play

mohiva/play-silhouette

Silhouette is an authentication library for Play Framework applications that supports several authentication methods, including OAuth1, OAuth2, OpenID, CAS, 2FA, TOTP, Credentials, Basic Authentication or custom authentication schemes.