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Today

Twirl

Twirl is Play's default template engine
Featured Package // Category Templating

Yesterday

Kyo

Toolkit for Scala Development
Featured Package // Category Reactive Web Frameworks

Last 7 Days

Awesome Scala Weekly » 473

Top Stories
  • First Make It Correct
  • This week in #Scala (Jun 9, 2025)

DIStage

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain
Featured Package // Category Modularization and Dependency Injection

jackson-module-scala

Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes
Featured Package // Category JSON

argonaut

Purely functional JSON parser and library in scala.
Featured Package // Category JSON

Eff

Eff monad for cats - https://atnos-org.github.io/eff
Featured Package // Category Extensions

MGO

Purely functional genetic algorithms for multi-objective optimisation
Featured Package // Category Science and Data Analysis

Last 30 Days

play-pac4j

Security library for Play framework 2 in Java and Scala: OAuth, CAS, SAML, OpenID Connect, LDAP, JWT...
Featured Package // Category Authentication

mdoc

Typechecked markdown documentation for Scala
Featured Package // Category Sbt plugins

Awesome Scala Weekly » 472

Top Stories
  • Making ScalaSql boring again (with interesting new internals)
  • This week in #Scala (Jun 2, 2025)
  • Redefining Stream Composition with Algebraic Effects by Adam Hearn

Tyrian

Elm-inspired Scala UI library.
Featured Package // Category Reactive Web Frameworks

Calico

Calico is a UI library for the Typelevel.js ecosystem. It leverages the abstractions provided by Cats Effect and FS2 to provide a fluent DSL for building web applications that are composable, reactive, and safe. If you enjoy working with Cats Effect and FS2 then I hope that you will like Calico as well.
Featured Package // Category Reactive Web Frameworks

Virgil

A purely functional Cassandra client built on top of the Datastax Java Driver supporting a variety of effect systems like ZIO & Cats-Effect supporting both Scala 2 & 3
Featured Package // Category Database

sbt-ci-release

sbt plugin to automate Sonatype releases from GitHub Actions
Featured Package // Category Sbt plugins

sbt 1.11.1 released

Update Popular Story // eed3si9n.com

Scala-Logging

Convenient and performant logging library for Scala wrapping SLF4J.
Featured Package // Category Extensions

Making ScalaSql boring again (with interesting new internals)

Article Popular Story // bishabosha.github.io

ScalaTest

A testing tool for Scala and Java developers
Featured Package // Category Testing

ScalikeJDBC

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

Awesome Scala Weekly » 471

Top Stories
  • JetBrains is featuring the Play Framework in their latest blog post 🎉
  • JetBrains Developer Ecosystem Survey 2025 is out!
  • Is there something like SpacetimeDB in Scala?

sbt-sonatype

A sbt plugin for publishing Scala/Java projects to the Maven central.
Featured Package // Category Sbt plugins

Spark 4.0.0 released

Update Popular Story // spark.apache.org

Scala Days 2025 Program is up! Read more in the blog.

Article Popular Story // scala-lang.org

REScala

REScala - distributed and reactive programming embedded in OO and FP programs.
Featured Package // Category Functional Reactive Programming

sbt-jmh

"Trust no one, bench everything." - sbt plugin for JMH (Java Microbenchmark Harness)
Featured Package // Category Sbt plugins

JetBrains Developer Ecosystem Survey 2025 is out!

Article Popular Story // surveys.jetbrains.com