A complete, fully tested and documented data structure library written in pure JavaScript.

• UpdatedDec 21, 2020
• JavaScript

Easy to use, modular, header only, macro based, generic and type-safe Data Structures in C

• UpdatedJun 26, 2024
• C

Modern C++ B-tree containers

• UpdatedAug 11, 2023
• C++

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

• UpdatedOct 12, 2025
• TypeScript

Generic algorithms and data structures for Lazarus/Free Pascal

• UpdatedOct 9, 2025
• Pascal

Swift Collection Data Structures Library

• UpdatedJan 20, 2019
• Swift

A collection of Data Structures implemented in Swift.

• UpdatedMar 28, 2018
• Swift

A single header library for managing game entity hierarchies.

• UpdatedNov 13, 2020
• C

A map in which more than one value may be stored under each key.

• UpdatedFeb 19, 2025
• JavaScript

Go-Multimap is an implementation of the `multimap` data structure in Go.

• UpdatedJun 20, 2019
• Go

Arduino library for fast non-linear mapping or interpolation of values

• UpdatedJul 18, 2025
• C++

Curated Multimaps and Rules for Rspamd

• UpdatedOct 13, 2025

Various containers written for C programmers who need complete control over their memory.

• UpdatedSep 29, 2025
• C

A flat HashMap that supports multiple entries per key

• UpdatedJun 24, 2025
• Rust

Efficient, fully tested, mutable data collections for JavaScript

• UpdatedMay 22, 2019
• JavaScript

c++ associative containers based on the XOR scapegoat tree

• UpdatedOct 9, 2025
• C++

Multimap

• UpdatedNov 23, 2019
• Rust

Concurrent Map

• UpdatedJun 8, 2019
• Go

Provides robust map collections for C# with high compatibility with core collection interfaces. Mirrored from GitLab.

• UpdatedApr 24, 2019
• C#

Package table implements a memory efficient in-memory multicolumn string table aka multimap/bimap in golang

• UpdatedJul 2, 2025
• Go