eed3si9n/expecty

Power assertions (as known from Groovy and Spock) for the Scala language.

typelevel/vault

Type-safe, persistent storage for values of arbitrary types

typelevel/claimant

Library to support automatic labeling of ScalaCheck properties.

japgolly/scalajs-benchmark

Benchmarks: write in Scala or JS, run in your browser. Live demo:

julienrf/enum

typelevel/coop

Cooperative multithreading as a pure monad transformer

virtuslab/inkuire

Hoogle-like searches for Scala 3 and Kotlin

scalamolecule/molecule

Non-blocking asynchronous domain-customizable database query language for Scala and Scala.js against the Datomic database.

purplekingdomgames/tyrian

Elm-inspired Scala UI library.

j-mie6/parsley

An exceptionally fast parser combinator library for Scala

chronoscala/chronoscala

A JSR-310 port of nscala_time

benhutchison/prickle

Prickle is a library for easily pickling (serializing) object graphs between Scala and Scala.js.

typelevel/scalacheck-effect

Effectful property testing built on ScalaCheck

japgolly/univeq

Safer universal equivalence (==) for Scala.

karasiq/scalajs-bootstrap

Scala.js bootstrap components

ccadllc/cedi-dtrace

Provides a functional API for tracing programs across system and network boundaries.

sciss/fingertree

A Scala implementation of the versatile purely functional data structure of the same name.

scodec/scodec-stream

Binding between scodec and FS2

jducoeur/jquery-facade

A strongly-typed Scala.js facade for jQuery

ironcorelabs/cats-scalatest

Scalatest binding for Cats