Alternatives and similar repositories for keys:

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

• well-typed / basic-sop
  Basic examples and functions for generics-sop
  ☆20Updated last year
• cartazio / monad-ste
  ST with efficient exceptions
  ☆20Updated 8 years ago
• atzeus / type-aligned
  Various type-aligned sequence data structures.
  ☆20Updated 3 years ago
• Gabriella439 / Haskell-Total-Library
  Exhaustive pattern matching using lenses, traversals, and prisms
  ☆32Updated 2 years ago
• ekmett / unique
  fast unique variables
  ☆10Updated 3 years ago
• alang9 / deque
  Type-aligned Deques in Haskell
  ☆9Updated 9 years ago
• snowleopard / united
  United Monoids
  ☆24Updated 2 years ago
• ocramz / trie-perf
  Performance shootout of various trie implementations
  ☆18Updated 5 years ago
• jtdaugherty / text-zipper
  A text editor zipper libary
  ☆17Updated 3 months ago
• jcristovao / newtype-generics
  A typeclass and set of functions for working with newtypes.
  ☆10Updated 2 years ago
• frerich / catamorphism
  A package exposing a function for generating catamorphisms.
  ☆28Updated 6 years ago
• AndrasKovacs / flat-maybe
  Rust-style strict Maybe in Haskell: no space/indirection overhead.
  ☆18Updated last year
• sjoerdvisscher / free-functors
  Provides free functors that are adjoint to functors that forget class constraints.
  ☆28Updated 5 months ago
• basvandijk / monad-batcher
  An applicative monad that batches commands for later more efficient execution
  ☆27Updated 7 years ago
• nfrisby / invariant-functors
  the 'invariant' Haskell package for invariant functors
  ☆15Updated 2 months ago
• puffnfresh / th-pprint
  Simplify and render Template Haskell
  ☆18Updated 6 years ago
• DanielSchuessler / th-expand-syns
  Expands type synonyms in Template Haskell ASTs
  ☆11Updated 2 months ago
• ezyang / deepseq-magic
  Deep evaluation of data structures without NFData
  ☆10Updated 10 years ago
• haskell-compat / deriving-compat
  Backports of GHC deriving extensions
  ☆13Updated 2 months ago
• Tritlo / ExampleHolePlugin
  ☆24Updated 4 years ago
• cobbpg / hp2any
  Haskell space profiling toolset
  ☆14Updated 6 years ago
• ekmett / promises
  lazy promises
  ☆27Updated 4 years ago
• jship / tao
  Type-level assertion operators
  ☆16Updated 6 years ago
• Lysxia / generic-recursion-schemes
  Folds for recursive types with GHC Generics
  ☆26Updated 4 years ago
• UnkindPartition / lexer-applicative
  Applicative lexer
  ☆13Updated 5 years ago
• takano-akio / fast-builder
  Fast ByteString Builder
  ☆21Updated 5 months ago
• deepfire / nh
  Manage Nix Haskell override sets
  ☆11Updated 6 years ago
• singpolyma / unexceptionalio
  IO without any PseudoExceptions
  ☆28Updated 4 years ago
• nikita-volkov / list-t
  ListT done right
  ☆15Updated last year
• kosmikus / records-sop
  Experimental implementation of generic record subtyping
  ☆18Updated 9 months ago