lloydmeta/enumeratum   1.9.8

A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations.

scalatest/scalatest   3.2.20

A testing tool for Scala and Java developers

scalameta/scalameta   4.17.0

Library to read, analyze, transform and generate Scala programs

ghostdogpr/caliban   3.1.2

Functional GraphQL library for Scala

com-lihaoyi/fastparse   3.1.1

Writing Fast Parsers Fast in Scala

softwaremill/quicklens   1.9.12

Modify deeply nested case class fields

scodec/scodec   2.3.3

Scala combinator library for working with binary data

plokhotnyuk/jsoniter-scala   2.38.14

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

softwaremill/magnolia   1.3.20

Easy, fast, transparent generic derivation of typeclass instances

getkyo/kyo   0.19.0

Toolkit for Scala Development

com-lihaoyi/scalatags   0.13.1

ScalaTags is a small XML/HTML construction library for Scala.

com-lihaoyi/os-lib   0.11.8

OS-Lib is a simple, flexible, high-performance Scala interface to common OS filesystem and subprocess APIs

scallop/scallop   6.0.0

a simple Scala CLI parsing library

bkirwi/decline   2.6.2

A composable command-line parser for Scala.

scala/scala-parser-combinators   2.4.0

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

jwt-scala/jwt-scala   11.0.4

JWT support for Scala. Bonus extensions for Play, Play JSON, Json4s, Circe, uPickle, Spray and Argonaut

com-lihaoyi/upickle   4.4.3

uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library for Scala

wvlet/airframe   2026.1.6

Essential Building Blocks for Scala

atnos-org/eff   8.0.0

Eff monad for cats - https://atnos-org.github.io/eff

etorreborre/specs2   5.9.0

Software Specifications for Scala