A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

java bitset spark roaring-bitmaps druid lucene roaringbitmap

• Updated Nov 4, 2026
• Java

Roaring bitmaps in Go (golang), used by InfluxDB, Bleve, DataDog

go bitset roaring-bitmaps databases indexing bitmap-compression

• Updated Nov 4, 2026
• Go

Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, Alibaba Tair, Redpanda, YDB and StarRocks

c bitset arm visual-studio roaring-bitmaps neon gcc clang avx2 bitset-library avx-512

• Updated Nov 9, 2026
• C

Go package implementing bitsets

go bitset

• Updated Nov 3, 2026
• Go

A crate for managing memory bit by bit

rust bitset bitvector

• Updated Aug 9, 2024
• Rust

M*LIB is a library of generic and type safe containers / data structures in pure C language (C99 / C11) for a wide collection of container (comparable to the C++ STL).

c set bitset json list tree stack queue algorithms string tuples array generic priority-queue data-structures hashmap collections lock-free variant

• Updated Oct 18, 2026
• C

A better compressed bitset in Rust

rust bitset roaring-bitmaps bitset-library

• Updated Nov 11, 2026
• Rust

A compressed alternative to the Java BitSet class

java bitset ewah bitmap-indexes

• Updated Oct 21, 2025
• Java

A compressed bitmap class in C++.

bitset compression bitmap ewah

• Updated Oct 30, 2024
• C++

Simple dense bitmap index in Go with binary operators

bitset bitmap index

• Updated Sep 23, 2026
• Assembly

Greg's Template Library of useful classes.

bitset memoize containers hash soa hashmap bitvector concurrent btree lru-cache bit-vector unordered unordered-set hash-container bit-vectors dynamic-bitset

• Updated Nov 10, 2026
• C++

Python library for handling efficiently sorted integer sets.

python bitset roaring-bitmaps

• Updated Oct 19, 2026
• C

Fast arbitrary-length and infinite-complement bit sets with ranges, iteration, and bitwise operations

javascript bitset bit-manipulation bitwise bit-array bit-vector bit-twiddling

• Updated Sep 9, 2026
• JavaScript

A Swift Bits Manipulation/Bitwise Operations Toolkit

bitset bit-manipulation bitwise-operators

• Updated Apr 30, 2020
• Swift

Build your own Game-Engine based on the Entity Component System concept in Golang.

go golang bitset benchmark game-engine scalability game-development raylib entity-component-system bitmask goroutine game-engine-2d

• Updated Sep 6, 2026
• Go

Speed-optimized BitSet implementation for modern browsers and JavaScript engines

javascript bitset bitmap union intersection

• Updated Feb 26, 2026
• JavaScript

Rust FFI wrapper for CRoaring

rust bitset wrapper roaring-bitmaps bitset-library croaring

• Updated Nov 5, 2026
• C

Bitset data structure

go bitset data-structures bit-array bit-twiddling

• Updated Dec 29, 2022
• Go

A simple bitset library in C

c bitset bitset-library

• Updated Oct 27, 2026
• C

in memory Rust database to query your data like a Venn diagram

rust bitset database memory vector venn-diagram db sets bitvec

• Updated Nov 18, 2025
• Rust