# Abit v1.0.0 - Table of Contents > Use Erlang atomics as a bit array or as an array of N-bit counters. ## Pages - [Abit](readme.md) - [Changelog for Abit](changelog.md) - [LICENSE](license.md) ## Modules - [Abit](Abit.md): Abit lets you use `:atomics` as a bit array or as an array of N-bit counters. - [Abit.Atomics](Abit.Atomics.md): This module provides utility functions for working with Erlang's :atomics. - [Abit.Bitmask](Abit.Bitmask.md): Functions for working with bits and integer bitmasks. - [Abit.Counter](Abit.Counter.md): Uses `:atomics` as an array of counters with N bits per counter. An `:atomics` reference stores an array of 64-bit integers.