Ecosystem

Tooling

• create-fp-ts-lib - Bootstrap libraries that follow common fp-ts coding, documentation and testing patterns
• docs-ts - Documentation generator used by fp-ts and many fp-ts libraries

Libraries

• fp-ts-contrib - A community driven utility package for fp-ts
• fp-ts-codegen - TypeScript code generation from a haskell-like syntax for ADT
• io-ts - TypeScript compatible runtime type system for IO validation
• monocle-ts - Functional optics: a (partial) porting of scala monocle to TypeScript
• spectacles-ts - A simple facade built on top of monocle-ts (autocompletes possible combinators)
• newtype-ts - Implementation of newtypes in TypeScript
• logging-ts - Composable loggers for TypeScript
• logger-fp-ts - Logger built on top of logging-ts
• fp-ts-routing - A type-safe bidirectional routing library for TypeScript
• parser-ts - String parser combinators for TypeScript
• remote-data-ts - RemoteData type (check this article)
• retry-ts - Retry combinators for monadic actions that may fail
• fp-ts-local-storage - fp-ts bindings for LocalStorage
• circuit-breaker-monad - Circuit Breaker pattern as a monad
• waveguide - Bifunctor effect type and concurrent data structures.
• kleisli-ts - Kleisli arrows for bifunctor MonadThrow (IOEither, TaskEither)
• @nll/datum - Datum and DatumEither types, another take on RemoteData and flow
• fetcher-ts - Type-safe REST HTTP client with io-ts response validation
• alga-ts – Algebraic encoding for graphs, which makes invalid graphs unrepresentable
• morphic-ts - Code first Domain modeling with extensive pattern supports (matchers, predicates, lenses) with useful, extensible, customisable derivations (Show, Eq, io-ts, fast-check, jsonSchema, ..).
• graphics-ts - A porting of purescript-{canvas, drawing} featuring fp-ts
• expressive-ts - Comonadic builders for writing complex regular expressions
• fp-fetch - Functional style, non-throwing utils for data fetching
• fp-ts-std - The missing pseudo-standard library for fp-ts.
• fp-ts-lcg - A seeded pseudorandom number generator
• fp-ts-graph - Immutable, functional graph data structure
• fp-ts-bigint - Opt-in BigInt functions
• fp-ts-generators - Seeded pseudorandom generators for structured data
• fp-ts-sized-vectors - Fixed size generic vector type carrying its length at the typelevel
• fp-ts-number-instances - Not fully law abiding instances for the number type
• fp-ts-react-stable-hooks - Reduce unnecessary rerenders when using fp-ts data types with React hooks

Bindings

• fp-ts-rxjs - fp-ts bindings for RxJS
• fp-ts-fluture - fp-ts bindings for Fluture
• fp-ts-most - fp-ts bindings for @most/core
• fp-ts-ixjs - fp-ts bindings for IxJS

Plugins

• fastify-funky - plugin that adds support for returning fp-ts Either and Task entities as handler execution results for fastify web framework