Algebras
- algebra scala
- Cats Tagless scala
Android
- Scala on Android scala
Annotations
- adversaria scala
ANSI-escaped Strings
- escapade scala
Apache Pulsar Clients
- Neutron scala
App Installers
- Conscript scala
Application Frameworks
- macwire scala
- neutrino scala
- scala-guice scala
Artifact Fetchers
- coursier scala
Asynchronous I/O
- Cats Effect scala scalajs native
- Monix scala
- zio scala
Authentication
- http4s-jwt-auth scala
AWS
- aws-lambda-scala scala
- smithy4s scala
Binary Data
- borer scala
- msgpack-scala scala
- msgpack4z scala scalajs native
- scodec scala
- uPack scala
- µPickle (uPickle) scala
Blockchain
- Scorex scala
Browser Testing
- tarantula scala
Build Tools
Caching
- scaffeine scala
Cassandra Clients
- phantom scala
CLI
Cloud
- aws-lambda-scala scala
Code Analysis
- sbt-scoverage scala
- sbt-sonar scala
- scalastyle scala
Code Formatting Tools
- scala-cli scala scalajs native
- scalafix scala
- scalafix-rewrites scala
- scalafmt scala
- scalariform scala
Collections
- Cats Collections scala
- scala-collection-contrib scala
- scala-parallel-collections scala
Color Algebra
- iridescence scala
Compatability
- scala-java8-compat scala
- scala-library-next scala
Compiler Plugins
- TwoTails scala
Concurrency
- cancellable-task scala
- cats-stm scala
- finagle scala
- scala-async scala
- scala-parallel-collections scala
- ScalaSTM scala
Configuration
- ciris scala
- PureConfig scala
Cron Parsers
- Cron4s scala scalajs
Cryptography
- gastronomy scala
Data Access
Data Manipulation
- Saddle scala scalajs
Data Serialization
- borer scala
- msgpack-scala scala
- msgpack4z scala scalajs native
- µPickle (uPickle) scala
Data Structures
- ip4s scala scalajs native
Date and Time
- cats-time scala
Dependency Injection
- macwire scala
- neutrino scala
- scala-guice scala
Dependency Management
- acyclic scala
- sbt-dependency-graph scala
- scala-steward scala
Effects
- Cats Effect scala scalajs native
- Monix scala
- zio scala
- play-mailer scala
Enumerations
- enumeratum scala
Evented I/O
- Monix scala
Filesystem Utilities
- better-files scala
- galilei scala
- imperial scala
- oslib scala
Filesystem Watchers
- directy-watcher scala
- play-filewatch scala
- surveillance scala
Functional Programming
- catbird scala
- Cats scala scalajs native
- Cats Collections scala
- Cats Effect scala scalajs native
- Cats MTL scala
- cats-effect-testing scala
- kittens scala
- scalactic scala
- scalaz scala
- shapeless scala
- wisteria scala
Generalized Paths
- serpentine scala
Generic Programming
- shapeless scala
Giter8 Templates
- akka/akka-quickstart-scala.g8 scala
- clementi/cats-effect-seed.g8 scala
- devinsideyou/scala3-seed.g8 scala
- http4s/http4s-io.g8 scala
- http4s/http4s.g8 scala
- scala/scala-seed.g8 scala
- scala/scala3-cross.g8 scala
- scala/scala3.g8 scala
- scalameta/mill-scala-seed.g8 scala
- smithy4s.g8 scala
Graphs
- acyclicity scala
- scala-graph scala
GUIs
- scala-swing scala
HTTP Caching
- cachecontrol scala
HTTP Clients
- Akka HTTP scala
- Dispatch scala
- hammock scala
- http4s scala
- play-ws scala
- requests-scala scala
- scalaj-http scala
- sttp scala
- telekinesis scala
HTTP Middleware
- http4s-tracer scala
HTTP Servers
- Akka HTTP scala
- http4s scala
- scintillate scala
- TwitterServer scala
- unfiltered scala
IDE Integration
- Bloop scala
- ensime scala
- Metals scala
- scalafix scala
- weaver-intellij scala
JSON
- argonaut scala
- argonaut-shapeless scala
- borer scala
- Circe scala
- jacinta scala
- jackson-module-scala scala
- jawn scala
- json4s scala
- play-JSON scala
- uJson scala
- µPickle (uPickle) scala
Kafka Clients
- scala-kafka-client scala
Library Decoupling and Abstraction
- anticipation scala
Linked Data & RDF
- banana-rdf scala
Logging
- log4cats scala
- log4s scala
- odin scala
- Scala Colog scala
- scala-Logging scala
Markdown
- punctuation scala
Math
- Spire scala
Metrics
- graphite4s scala
- Kamon scala
MIME Type Handling
- gesticulate scala
Monad Transformers
- Cats MTL scala
Multilingual Strings
- cosmopolite scala
OS APIs
- oslib scala
Parsing
- atto scala
- cats-parse scala scalajs
- FastParse scala
- scala-parser-combinators scala
Postgres Clients
- skunk scala
Project Generators
- adopt-tapir scala
- adopt-tapir (CLI) scala
- giter8 scala
RabbitMQ Client
- fs2-rabbit scala
Random Data Generation
- rng scala
- ScalaCheck scala
Reactive
- Akka scala
- Akka HTTP scala
- Akka stream scala
- Alpakka scala
- Pekko scala
- vertx-lang-scala scala
Redis Clients
- redis4cats scala
Regular Expressions
- kaleidoscope scala
REPLs
- ammonite scala
Retrying Failures
- cats-retry scala
- retry scala
RSS Generation
- ssu scala
SBT Plugins
- acyclic scala
- mima scala
- sbt-assembly scala
- sbt-buildinfo scala
- sbt-dependency-graph scala
- sbt-jmh scala
- sbt-scala-module scala
- sbt-sonar scala
- sbt-tpolecat scala
- Scala Clippy scala
- scalafix-rewrites scala
- splain scala
Scala Extensions
- rudiments scala
Scala Syntax Highlighting
- harlequin scala
Serverless
- aws-lambda-scala scala
- graalnative4s scala
Shell Process Management
- guillotine scala
Singleton Types
- singleton-ops scala
Smithy
- alloy scala
- smithy-translate scala
- smithy4s scala
SQL Clients
- Doobie scala
State
- Diode scala scalajs
Static Site Generation
- hepek scala
- sbt-microsites scala
Stream Processing
- Akka stream scala
- Alpakka scala
- fs2 scala
- fs2-blobstore scala
- fs2-rabbit scala
- turbulence scala
String Manipulation
- case-insensitive scala
- contextual scala
- cosmopolite scala
Tabular Output
- escritoire scala
Testing
- cats-effect-testing scala
- cats-scalatest scala
- cornichon scala
- dorado scala
- minitest scala scalajs native
- munit scala
- probably scala
- ScalaCheck scala
- scalatest scala
- scalatestplus-play scala
- specs2 scala
- tarantula scala
- utest scala
- weaver-test scala
Tracing
- http4s-tracer scala
- skadi scala
Type Providers
- polyvinyl scala
Typeclasses
- wisteria scala
Typesafe Strings
- gossamer scala
Web Services
Web Sockets
- play-socket.io scala
Website Scraping
- metascraper scala
YAML
- circe-yaml scala
- scala-yaml scala scalajs native