Extensible effects are an alternative to monad transformers for computing with effects in a functional way.

Eff alternatives and similar packages

Based on the "Extensions" category

• Scalaz

  9.7 8.3 Eff VS Scalaz

  An extension to the core Scala library for functional programming.

• Twitter Util

  9.4 8.5 Eff VS Twitter Util

  General-purpose Scala libraries, including a future implementation and other concurrency tools.

• Shapeless

  9.3 7.0 Eff VS Shapeless

  A type class and dependent type based generic programming library for Scala.

• Ammonite-Ops

  9.2 8.3 Eff VS Ammonite-Ops

  Safe, easy, filesystem operations in Scala as convenient as in the Bash shell.

• Cassovary

  8.5 1.5 Eff VS Cassovary

  A Scala library that is designed from the ground up for space efficiency, handling graphs with billions of nodes and edges.

• Monocle

  8.4 8.6 Eff VS Monocle

  An Optics/Lens library for purely functional manipulation of immutable objects.

• Scalactic

  8.4 9.5 Eff VS Scalactic

  Small library of utilities related to quality that helps keeping code clear and correct.

• better-files

  8.4 8.4 Eff VS better-files

  Simple, safe and intuitive Scala I/O. better-files is a dependency-free pragmatic thin Scala wrapper around Java NIO.

• Scala Async

  8.1 6.8 Eff VS Scala Async

  An asynchronous programming facility for Scala.

• scala.meta

  7.9 8.4 Eff VS scala.meta

  A clean-room implementation of a metaprogramming toolkit for Scala.

• refined

  7.8 8.4 Eff VS refined

  Simple refinement types with compile- and runtime checking

• n-scala

  7.5 6.5 Eff VS n-scala

  Scala wrapper for Joda Time.

• Simulacrum

  7.4 7.4 Eff VS Simulacrum

  First class syntax support for type classes in Scala.

• Enumeratum

  7.4 7.8 Eff VS Enumeratum

  A macro to replace Scala enumerations with a sealed family of case objects. This allows additional checks for the compiler, e.g. for missing cases in a match statement. Has additinal support for Json libraries and the Play framework.

• cats

  7.1 8.6 Eff VS cats

  Lightweight, modular, and extensible library for functional programming.

• Freestyle

  6.9 3.0 Eff VS Freestyle

  A cohesive & pragmatic framework of FP centric Scala libraries.

• Scala Graph

  6.6 8.0 Eff VS Scala Graph

  A Scala library with basic graph functionality that seamlessly fits into the Scala standard collections library.

• Quicklens

  6.5 5.4 Eff VS Quicklens

  modify deeply nested case class fields with an elegant API

• LArray

  5.6 2.1 Eff VS LArray

  Large off-heap arrays (> 2GB) and mmap files.

• Hamsters

  5.3 6.9 Eff VS Hamsters

  A mini Scala utility library. Compatible with functional programming beginners. Featuring validation, monad transformers, HLists, Union types.

• Each

  5.1 7.1 Eff VS Each

  A macro library that converts native imperative syntax to Scalaz's monadic expressions.

• Rapture

  4.7 0.0 Eff VS Rapture

  a collection of libraries for common, everyday programming tasks (I/O, JSON, i18n, etc.)

• Stateless Future

  4.6 0.0 Eff VS Stateless Future

  Asynchronous programming in fully featured Scala syntax.

• scribe

  4.5 7.2 Eff VS scribe

  Practical logging framework that doesn't depend on any other logging framework and can be completely configured programmatically.

• Scala Blitz

  4.5 0.0 Eff VS Scala Blitz

  A library to speed up Scala collection operations by removing runtime overheads during compilation, and a custom data-parallel operation runtime.

• Records for Scala

  4.1 5.6 Eff VS Records for Scala

  Labeled records for Scala based on structural refinement types and macros.

• Sauron

  4.0 0.0 Eff VS Sauron

  Lightweight lens library in less than 50-lines of Scala.

• Play monadic actions

  3.9 1.4 Eff VS Play monadic actions

  A simple scala DSL to allow clean and monadic style for Play! Actions

• Log4s

  3.5 5.6 Eff VS Log4s

  Fast, Scala-friendly logging bindings on top of SLF4J. Uses macros for extreme performance.

• Freasy Monad

  3.1 0.0 Eff VS Freasy Monad

  Easy way to create Free Monad using Scala macros with first-class Intellij support.

• Lamma

  2.9 0.0 Eff VS Lamma

  A Scala date library for date and schedule generation.

• enableIf.scala

  2.9 7.0 Eff VS enableIf.scala

  A library that switches Scala code at compile-time, like #if in C/C++.

• Resolvable

  2.1 0.0 Eff VS Resolvable

  A library to optimize fetching immutable data structures from several endpoints in several formats.

• wvlet-log

  2.0 0.0 Eff VS wvlet-log

  A library for enhancing your application logs with colors and source code locations.

• Persist-Logging

  2.0 0.0 Eff VS Persist-Logging

  Comprehensive logging library for Scala.

• Freedsl

  1.9 0.9 Eff VS Freedsl

  A library to implement composable side effects, weaving typeclasses on a wrapping type and the free monad.

• pico-event

  1.0 0.0 Eff VS pico-event

  Tiny publish subscribe library

• idid

  0.9 0.0 Eff VS idid

  A library to define common interfaces for different Id types.

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Popular Comparisons

• Eff
  vs
  Freasy Monad
• Eff
  vs
  Play monadic actions
• Eff
  vs
  Ammonite-Ops
• Eff
  vs
  Enumeratum
• Eff
  vs
  better-files

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