com-lihaoyi/os-lib   0.11.8

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

purplekingdomgames/indigo   0.22.0

An FP game engine for Scala.

scallop/scallop   6.0.0

a simple Scala CLI parsing library

ruippeixotog/scala-scraper   3.2.0

A Scala library for scraping content from HTML pages

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

tototoshi/scala-csv   2.0.0

CSV Reader/Writer for Scala

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

shadaj/slinky   0.7.5

Write Scala.js React apps just like you would in ES6

sksamuel/avro4s   5.0.15

Avro schema generation and serialization / deserialization for Scala

testcontainers/testcontainers-scala   0.44.1

Docker containers for testing in scala

scoverage/sbt-scoverage   2.4.4

sbt plugin for scoverage

sbt/sbt-release   1.5.0

A release plugin for sbt

wvlet/airframe   2026.2.2

Essential Building Blocks for Scala

com-lihaoyi/requests-scala   0.9.3

A Scala port of the popular Python Requests HTTP client: flexible, intuitive, and straightforward to use.

7mind/izumi   1.5.9

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain

virtuslab/scala-cli   1.15.0

Scala CLI is a command-line tool to interact with the Scala language. It lets you compile, run, test, and package your Scala code (and more!)

atnos-org/eff   8.0.0

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

etorreborre/specs2   5.9.1

Software Specifications for Scala