| haskellPackages.indices | Multi-dimensional statically bounded indices |
| haskellPackages.data-index | Extending the concept of indices for lists and other containers |
| haskellPackages.rebound | A variable binding library based on well-scoped de Bruijn indices |
| haskellPackages.hoogle-index | Easily generate Hoogle indices for installed packages |
| haskellPackages.debruijn | de Bruijn indices and levels |
| haskellPackages.foldable-ix | Functions to find out the indices of the elements in the Foldable structures |
| haskellPackages.debruijn-safe | de Bruijn indices and levels |
| haskellPackages.membership | Indices for type level lists |
| haskellPackages.data-quotientref | Reference cells that need two independent indices to be accessed |