Alternatives and similar repositories for cats:

Users that are interested in cats are comparing it to the libraries listed below

• typelevel / cats-effect
  The pure asynchronous runtime for Scala
  ☆2,099Updated this week
• typelevel / fs2
  Compositional, streaming I/O library for Scala
  ☆2,390Updated this week
• milessabin / shapeless
  Generic programming for Scala
  ☆3,400Updated last week
• scalaz / scalaz
  Principled Functional Programming in Scala
  ☆4,666Updated last week
• typelevel / doobie
  Functional JDBC layer for Scala.
  ☆2,184Updated this week
• circe / circe
  Yet another JSON library for Scala
  ☆2,501Updated last week
• http4s / http4s
  A minimal, idiomatic Scala interface for HTTP
  ☆2,570Updated this week
• zio / zio
  ZIO — A type-safe, composable library for async and concurrent programming in Scala
  ☆4,181Updated this week
• monix / monix
  Asynchronous, Reactive Programming for Scala and Scala.js.
  ☆1,935Updated 7 months ago
• com-lihaoyi / Ammonite
  Scala Scripting
  ☆2,618Updated 3 weeks ago
• scala / scala3
  The Scala 3 compiler, also known as Dotty.
  ☆5,970Updated this week
• coursier / coursier
  Pure Scala Artifact Fetching
  ☆2,077Updated this week
• slick / slick
  Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala
  ☆2,655Updated this week
• zio / zio-quill
  Compile-time Language Integrated Queries for Scala
  ☆2,153Updated this week
• typelevel / scalacheck
  Property-based testing for Scala
  ☆1,948Updated last week
• softwaremill / sttp
  The Scala HTTP client you always wanted!
  ☆1,464Updated this week
• scalameta / metals
  Scala language server with rich IDE features 🚀
  ☆2,169Updated this week
• finagle / finch
  Scala combinator library for building Finagle HTTP services
  ☆1,602Updated 2 weeks ago
• typelevel / skunk
  A data access library for Scala + Postgres.
  ☆1,605Updated this week
• optics-dev / Monocle
  Optics library for Scala
  ☆1,667Updated 2 weeks ago
• fthomas / refined
  Refinement types for Scala
  ☆1,720Updated 2 weeks ago
• scalameta / scalafmt
  Code formatter for Scala
  ☆1,459Updated last week
• akka / akka-http
  The Streaming-first HTTP server/module of Akka
  ☆1,334Updated last week
• softwaremill / tapir
  Rapid development of self-documenting APIs
  ☆1,390Updated this week
• twitter / rsc
  Experimental Scala compiler focused on compilation speed
  ☆1,239Updated 3 years ago
• scalatest / scalatest
  A testing tool for Scala and Java developers
  ☆1,156Updated last week
• japgolly / scalajs-react
  Facebook's React on Scala.JS
  ☆1,648Updated last month
• typelevel / spire
  Powerful new number types and numeric abstractions for Scala.
  ☆1,771Updated 2 weeks ago
• sbt / sbt
  sbt, the interactive build tool
  ☆4,825Updated this week
• sbt / sbt-native-packager
  sbt Native Packager
  ☆1,600Updated last week