plokhotnyuk/jsoniter-scala   2.36.1

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

raquo/laminar   17.2.1

Simple, expressive, and safe UI library for Scala.js

com-lihaoyi/scalatags   0.13.1

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

sirthias/parboiled2   2.5.1

A macro-based PEG parser generator for Scala 2.10+

scallop/scallop   5.2.0

a simple Scala CLI parsing library

jwt-scala/jwt-scala   10.0.4

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

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

purplekingdomgames/indigo   0.21.1

An FP game engine for Scala.

shadaj/slinky   0.7.5

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

bkirwi/decline   2.5.0

A composable command-line parser for Scala.

com-lihaoyi/upickle   4.2.1

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

suzaku-io/diode   1.1.14

Scala library for managing immutable application model

getkyo/kyo   0.19.0

Toolkit for Scala Development

wvlet/airframe   2025.1.10

Essential Building Blocks for Scala

7mind/izumi   1.4.2

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain

atnos-org/eff   8.0.0

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

etorreborre/specs2   5.6.3

Software Specifications for Scala

stanch/reftree   1.5.0

Automatically generated diagrams and animations for Scala data structures

typelevel/cats-collections   0.9.9

Data structures for pure functional programming in Scala

estatico/scala-newtype   0.4.4

NewTypes for Scala with no runtime overhead