scala / scala

Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

typelevel / cats

Lightweight, modular, and extensible library for functional programming.

microsoft / SynapseML

Simple and Distributed Machine Learning Python Library porting ML algorithms for Spark

zio / zio

ZIO — A type-safe, composable library for async and concurrent programming in Scala

awslabs / deequ

Deequ is a library built on top of Apache Spark for defining "unit tests for data", which measure data quality in large datasets.

slick / slick

Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala

circe / circe

Yet another JSON library for Scala

typelevel / fs2

Compositional, streaming I/O library for Scala

optics-dev / Monocle

Optics library for Scala

typelevel / skunk

A data access library for Scala + Postgres.

pureconfig / pureconfig

A boilerplate-free library for loading configuration files

json4s / json4s

JSON library

akka / alpakka-kafka

Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

softwaremill / macwire

Zero-cost, compile-time, type-safe dependency injection library.

scalikejdbc / scalikejdbc

A tidy SQL-based DB access library for Scala developers. This library naturally wraps JDBC APIs and provides you easy-to-use APIs.

akka / alpakka

Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

scalalandio / chimney

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

scalameta / scalameta

Library to read, analyze, transform and generate Scala programs

ghostdogpr / caliban

Functional GraphQL library for Scala

raquo / Laminar

Simple, expressive, and safe UI library for Scala.js

LucaCanali / sparkMeasure

This repository contains the development code for sparkMeasure, an Apache Spark performance analysis and troubleshooting library. It simplifies collecting, aggregating, and exporting Spark task/stage metrics, and is designed for practical use by developers and data engineers in interactive analysis, testing, and production monitoring workflows.

plokhotnyuk / jsoniter-scala

Scala macros for compile-time generation of safe and ultra-fast JSON codecs + circe booster

playframework / play-slick

Slick Plugin for Play

ruippeixotog / scala-scraper

A Scala library for scraping content from HTML pages

scallop / scallop

a simple Scala CLI parsing library

scala / scala-parser-combinators

simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module

7mind / izumi

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain

Yubico / java-webauthn-server

Server-side Web Authentication library for Java https://www.w3.org/TR/webauthn/#rp-operations

playframework / twirl

Twirl is Play's default template engine

outr / scribe

The fastest logging library in the world. Built from scratch in Scala and programmatically configurable.

argonaut-io / argonaut

Purely functional JSON parser and library in scala.