Books

Devops

• Essential Scala - Essential Scala is aimed at experienced developers who are encountering Scala for the first time.
• Functional and Reactive Domain Modeling
• Functional Programming for Mortals
• Functional Programming in Scala
• Functional Programming, Simplified (Scala edition)
• Get Programming with Scala - Tutorial-driven introduction to Scala
• Practical FP in Scala: A hands-on approach
• Programming in Scala
• Pure functional HTTP APIs in Scala
• Reactive Programming with Scala and Akka - Use the concepts of reactive programming to build distributed systems running on multiple nodes
• Scala Cookbook
• Scala for the Impatient - Covers most Scala features with short and easy to understand explainations.
• Scala With Cats - Learn system architecture and design using the techniques of modern functional programming with Cats
• The Type Astronaut's Guide to Shapeless
• Zionomicon - Master the dark art of creating scalable, type-safe, concurrent apps with ZIO
• Scala Cookbook
• Zionomicon - Master the dark art of creating scalable, type-safe, concurrent apps with ZIO

Commercial courses

Devops

• Foundations of Functional Programming in Scala - a professional video course with exercises covering covers functional principles, custom IO (effects) and functional design.
• Scala Algorithms - a collection of nearly 100 algorithms in pure-functional Scala with test cases, explanations and a web-based IDE. Built with http4s & Scala.js.

Communities

Devops

• Scala Ukraine - Telegram chat of Ukrainian Scala Community

Company Blogs

Devops

• Functional Works / Learn - Quality resources maintained by functional works
• Scala Times - Weekly newsletter about scala
• 47 Degrees - Functional Programming news, updates, and more.
• 47 Degrees - Functional Programming news, updates, and more.
• Functional Works / Learn - Quality resources maintained by functional works
• 47 Degrees - Functional Programming news, updates, and more.

Exercises

Devops

• S-99 - Ninety-Nine Scala Problems
• S-99 - Ninety-Nine Scala Problems
• Scala Exercises - Brings the popular Scala Koans to the web. Offering hundreds of solvable exercises organized into 42 categories covering the basics of the Scala language.
• Exercism - Scala Exercises - Community-driven Scala exercises.
• Scala Exercises - Brings the popular Scala Koans to the web. Offering hundreds of solvable exercises organized into 42 categories covering the basics of the Scala language.
• Learn-by-doing functional programming course on Scala - Covers type classes, functors, applicatives, monads, monad transformers, free monad

Misc.

Devops

• Programming Community Curated Resources for Learning Scala
• Scala @LibHunt - A community driven list of useful Scala libraries, frameworks and software
• Scala Days Conferences - A youtube channel that provides full fledged videos, recorded at Scala Days Conferences
• Scalera Blog - Blog about Scala language and its environment (howto's, good practices, tips,...). Weekly posts written in both spanish and english
• Scala @LibHunt - A community driven list of useful Scala libraries, frameworks and software
• CA Art - A small project aimed at learning Scala on intermediate level by experimenting with Cellular Automata

Podcasts

Devops

• The Scala Logs - Interviewing developers, open source contributors, subject matter experts, and the like to talk about FP, Scala, open source, and their interests.
• Scala Love - Podcast about the Scala Programming Language and its community
• CoRecursive Interviews - In-depth Interviews with software developers, often on the subject of scala libraries and functional programming.
• Scala Love - Podcast about the Scala Programming Language and its community
• Scala for Fun & Profit - Interviewing Scala users and companies.
• Scala for Fun & Profit - Interviewing Scala users and companies.

Table of Contents

Android

• **scaloid** - activity/y/pocorall/scaloid)

Archive and Compression

• SevenZ4S - activity/y/gonearewe/SevenZ4S)

Artificial Intelligence

• cilib - activity/y/ciren/cilib)

Authentication

• akka-http-session - side akka-http sessions, with optional JWT support |
• aws-request-signer - request-signer)
• OAuth2-mock-play - stups/OAuth2-mock-play)
• play-googleauth - googleauth)
• play-pac4j - pac4j)
• **play2-auth** - auth)
• **scala-oauth2-provider** - side implementation written in Scala |
• **securesocial** - activity/y/jaliss/securesocial)

Big Data

• Scrunch
• **BIDMach** - accelerated Machine Learning Library |
• **flink** - activity/y/apache/flink)
• gridscale - activity/y/openmole/gridscale)
• **kafka** - activity/y/apache/kafka)
• **alpakka-kafka** - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka. |
• **scalding** - activity/y/twitter/scalding)
• schemer - activity/y/indix/schemer)
• **scio** - activity/y/spotify/scio)
• **spark** - A unified analytics engine for large-scale data processing |
• gallia-core - aware Scala library for data transformation |
• **nussknacker** - code tool for automating actions on real time data | Stream processing for the users. |

Command Line Interfaces

• **decline** - line parser for Scala. |
• mainargs - free library for command-line argument parsing in Scala |
• **scallop** - activity/y/scallop/scallop)
• **scopt** - activity/y/scopt/scopt)

Cryptography

• scrypto - output-hk/scrypto)
• tsec - safe general-cryptography library - https://jmcardon.github.io/tsec/ |
• jose - activity/y/blackdoor/jose)

CSV

• fm-flatfile - flatfile)
• kantan.csv - activity/y/nrinaudo/kantan.csv)
• **scala-csv** - csv)
• spata - based CSV processor for Scala |

Database

• akka-persistence-gcp-datastore - persistence-gcp-datastore is a journal and snapshot store plugin for akka-persistence using google cloud firestore in datastore mode. |
• anorm - activity/y/playframework/anorm)
• **casbah** - of-life (EOL). |
• clickhouse-scala-client - scala-client)
• couchbase-jvm-clients - core… |
• couchdb-scala - scala)
• etcd4s - activity/y/mingchuno/etcd4s)
• finagle-postgres - postgres)
• laserdisc - free Fs2 native pure FP Redis client |
• mysql-binlog-stream - io/mysql-binlog-stream)
• longevity - activity/y/longevityframework/longevity)
• lucene4s - weight convenience wrapper around Lucene to simplify complex tasks and add Scala sugar. |
• mapperdao - activity/y/kostaskougios/mapperdao)
• morpheus - safe Scala driver for SQL databases |
• neotypes - safe, asynchronous driver for neo4j |
• **phantom** - safe, reactive Scala driver for Cassandra/Datastax Enterprise |
• pulsar4s - activity/y/CleverCloud/pulsar4s)
• **zio-quill** - time Language Integrated Queries for Scala |
• reactivecouchbase-rs-core - streams |
• **ReactiveMongo** - blocking, Reactive MongoDB Driver for Scala |
• **rediscala** - blocking, Reactive Redis driver for Scala (with Sentinel support) |
• relate - activity/y/lucidsoftware/relate)
• salat - activity/y/salat/salat)
• **sangria** - graphql/sangria)
• scala-activerecord - like ORM library for Scala |
• scala-forklift - safe data migration tool for Slick, Git and beyond. |
• **scala-redis** - redis)
• scala-sql - sql)
• scalarelational - Safe framework for defining, modifying, and querying SQL databases |
• **scalikejdbc** - based DB access library for Scala developers. This library naturally wraps JDBC APIs and provides you easy-to-use APIs. |
• scanamo - activity/y/scanamo/scanamo)
• scredis - blocking, ultra-fast Scala Redis client built on top of Akka IO, used in production at Livestream |
• scruid - bank/scruid)
• shade - activity/y/monix/shade)
• **slick** - activity/y/slick/slick)
• **slick-pg** - pg)
• **squeryl** - activity/y/squeryl/squeryl)
• molecule - activity/y/scalamolecule/molecule)
• zio-redis - based redis client |
• kvs - deps/kvs)
• **doobie** - activity/y/typelevel/doobie)
• **elastic4s** - Reactive, Non Blocking, Type Safe, HTTP Client |
• squery - activity/y/sake92/squery)
• **skunk** - activity/y/typelevel/skunk)

Data Binding and Validation

• dupin - activity/y/yakivy/dupin)
• octopus - free validation |
• veto - activity/y/splink/veto)
• fields - company/fields)

Devops

• skuber - activity/y/hagay3/skuber)

Distributed Systems

• **akka** - driven applications on the JVM |
• annette - wide business applications |
• **finagle** - agnostic RPC system |
• poppet - safe RPC Scala library. |
• automorph - org/automorph)

Extensions

• Scalactic
• **Ammonite** - lihaoyi/Ammonite)
• **better-files** - files)
• blindsight - activity/y/tersesystems/blindsight)
• **cats** - activity/y/typelevel/cats)
• **chimney** - free, type-safe data transformations |
• chronoscala - 310 port of nscala_time |
• Dsl.scala - Specific Languages in Scala |
• each - activity/y/ThoughtWorksInc/each)
• **eff** - https://atnos-org.github.io/eff |
• enableIf.scala - time, like #if in C/C++ |
• **enumeratum** - safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations. |
• log4s - performance SLF4J wrapper for Scala. |
• **Monocle** - dev/Monocle)
• **nscala-time** - time |
• **quicklens** - activity/y/softwaremill/quicklens)
• **refined** - activity/y/fthomas/refined)
• **scala-async** - async)
• **scala-graph** - memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way. |
• **scala-logging** - labs/scala-logging)
• **scalameta** - activity/y/scalameta/scalameta)
• **scalaz** - activity/y/scalaz/scalaz)
• **scribe** - activity/y/outr/scribe)
• **shapeless** - activity/y/milessabin/shapeless)
• **simulacrum** - activity/y/typelevel/simulacrum)
• squid - safe metaprogramming and compilation framework for Scala |
• **tinylog** - org/tinylog)
• **util** - activity/y/twitter/util)

Functional Reactive Programming

• **fs2** - activity/y/typelevel/fs2)
• iteratee - activity/y/travisbrown/iteratee)
• **monix** - activity/y/monix/monix)
• REScala - distributed and reactive programming embedded in OO and FP programs. |
• **zio** - safe, composable library for async and concurrent programming in Scala |

Geospatial

• **geotrellis** - activity/y/locationtech/geotrellis)
• osm4scala - activity/y/simplexspatial/osm4scala)
• rtree2d - tree for ultra-fast nearest and intersection queries in plane and spherical coordinates |
• stac4s - utils/stac4s)
• franklin - activity/y/azavea/franklin)

Graphical User Interfaces

• **scalafx** - based user interfaces in Scala |

HTTP

• **akka-http** - first HTTP server/module of Akka |
• reboot - activity/y/dispatch/reboot)
• **finch** - activity/y/finagle/finch)
• **http4s** - activity/y/http4s/http4s)
• lolhttp - activity/y/criteo/lolhttp)
• **requests-scala** - lihaoyi/requests-scala)
• scalaxb - activity/y/eed3si9n/scalaxb)
• **sttp** - activity/y/softwaremill/sttp)
• **tapir** - documenting APIs |
• endpoints4s - activity/y/endpoints4s/endpoints4s)
• frontier - deps/frontier)

i18n

• scala-xgettext - framework/scala-xgettext)
• scaposer - framework/scaposer)

Image processing and image analysis

• scalismo - gravis/scalismo)
• **scrimage** - Java, Kotlin, Scala image processing library |

JavaScript

• **scala-js** - js/scala-js)

JSON

• **argonaut** - io/argonaut)
• **circe** - activity/y/circe/circe)
• diffson - activity/y/gnieh/diffson)
• **jackson-module-scala** - on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes |
• jawn - sawn (JSON) |
• **json4s** - activity/y/json4s/json4s)
• **jsoniter-scala** - time generation of safe and ultra-fast JSON codecs + circe booster |
• json - Json, a Fast Json Parser Written in Scala |
• ninny-json - json)
• play-json - json)
• pushka - activity/y/fomkin/pushka)
• sbt-json - json)
• scala-jsonapi - jsonapi/scala-jsonapi)