Alternatives and similar repositories for free:

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

• mattbierner / akh
  Javascript Monad and Monad Transformer Collection
  ☆82Updated 6 years ago
• fluture-js / momi
  Monadic middleware
  ☆59Updated 3 years ago
• flunc / optics
  Profunctor implementation of Lenses, Prisms, Traversals, Isos, etc.
  ☆87Updated 8 years ago
• fantasyland / fantasy-combinators
  Common combinators.
  ☆66Updated 9 years ago
• russellmcc / fantasydo
  Do-notation for javascript fantasy land
  ☆64Updated 11 years ago
• fantasyland / fantasy-io
  IO control structure.
  ☆37Updated 6 years ago
• DrBoolean / excursion
  recursion-schemes in JS
  ☆57Updated 8 years ago
• fantasyland / fantasy-eithers
  Either data structure.
  ☆21Updated 6 years ago
• fantasyland / fantasy-frees
  Free monad
  ☆26Updated 9 years ago
• natefaubion / adt.js
  Algebraic data types for Javascript
  ☆220Updated 11 years ago
• funfix / funland.js
  Type classes for interoperability of common algebraic structures in JavaScript, TypeScript and Flow
  ☆46Updated 10 months ago
• gabejohnson / fantasy-interfaces
  JavaScript "native" interfaces for Fantasy Land
  ☆19Updated 7 years ago
• masaeedu / natch
  Natural pattern matching in JS
  ☆23Updated 2 years ago
• Risto-Stevcev / lazy-either
  A lazy implementation of the Fantasy Land Either type
  ☆16Updated 7 years ago
• funkia / jabz
  Powerful and practical functional abstractions for JavaScript and TypeScript. Functors, Monads, Traversables and all that jazz.
  ☆89Updated 6 years ago
• DrBoolean / freeky
  Free monad Collection
  ☆176Updated 6 years ago
• folktale / data.validation
  Migrated to https://github.com/origamitower/folktale
  ☆60Updated 8 years ago
• fantasyland / fantasy-monoids
  A collection of monoids
  ☆29Updated 8 years ago
• kedashoe / hindley-milner-parser-js
  ☆27Updated 2 years ago
• fantasyland / fantasy-states
  State control structure.
  ☆17Updated 7 years ago
• ramda / ramda-lens
  Lens library built on ramda
  ☆184Updated 7 years ago
• fantasyland / ECMAScript-proposals
  Meta repository for discussions regarding ECMAScript proposals
  ☆12Updated 8 years ago
• briancavalier / forgefx
  Algebraic effects and handlers using generators
  ☆57Updated this week
• tel / js-algebraic
  A set of specifications or signatures on algebraic modules and an implementation of a standard library built to match.
  ☆78Updated 9 years ago
• fantasyland / fantasy-check
  QuickCheck Library using Fantasy-Land
  ☆18Updated 9 years ago
• joshburgess / fp-ts-most
  fp-ts bindings for @most/core
  ☆23Updated 2 years ago
• reaktor / purescript-workshop
  PureScript for Working Stiffs - Exercises and slides for an intro to PureScript workshop
  ☆65Updated 6 years ago
• brakmic / purescript-redux
  Redux Bindings for PureScript
  ☆36Updated 6 years ago
• joneshf / elm-brands
  An experiment with higher-kinded types in elm
  ☆57Updated 8 years ago
• phadej / optika
  Optics library for JavaScript
  ☆141Updated 6 years ago