unfiltered/unfiltered   0.12.1

A toolkit for servicing HTTP requests in 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

purplekingdomgames/indigo   0.22.0

An FP game engine for Scala.

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

lucacanali/sparkmeasure   0.27

This repository contains the development code for sparkMeasure, an Apache Spark performance analysis and troubleshooting library. It simplifies collecting, aggregating, and exporting Spark task/stage metrics, and is designed for practical use by developers and data engineers in interactive analysis, testing, and production monitoring workflows.

jwt-scala/jwt-scala   11.0.4

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

tototoshi/scala-csv   2.0.0

CSV Reader/Writer for Scala

shadaj/slinky   0.7.5

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

com-lihaoyi/upickle   4.4.3

uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library 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   1.4.0

A release plugin for sbt

suzaku-io/diode   1.1.14

Scala library for managing immutable application model

wvlet/airframe   2026.1.5

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.

rbmhtechnology/eventuate   0.10

Global-scale event sourcing and event collaboration with causal consistency (This project is in maintenance mode. Only critical bugs will be fixed, but there is no more feature development.).

frees-io/freestyle   0.8.2

A cohesive & pragmatic framework of FP centric Scala libraries

apache/incubator-livy   0.9.0-incubating

Apache Livy is an open source REST interface for interacting with Apache Spark from anywhere.