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Hash Map Libraries

Libraries providing high‑performance hash table implementations—often used as core data structure components in systems programming—with implementations inspired by Google's SwissTable design.

8 projects

6,771 contributors

$93M

Hazelcast

Hazelcast is an open-source distributed computing platform that provides in-memory data storage and processing capabilities. It offers features like distributed caching, distributed data structures, distributed computing, and clustering for building scalable applications.

Contributors

2,976

Organizations

463

Software value

$63M

Guava

Guava is Google's core Java libraries that include new collection types, immutable collections, a graph library, utilities for concurrency, I/O, hashing, caching, primitives, strings, and more. It provides production-quality implementations of commonly used data structures and algorithms.

Contributors

2,557

Organizations

626

Software value

$29M

hashbrown

Hashbrown is a high-performance hash table implementation that serves as Rust's standard HashMap type. It uses SwissTable, a fast open-addressing hash table algorithm, and provides features like zero-cost reference types and SIMD optimization.

Contributors

429

Organizations

158

Software value

$412K

Rust-PHF

Compile time static maps for Rust

Contributors

289

Organizations

124

Software value

$156K

IndexMap

A hash table with consistent order and fast iteration; access items by key or sequence index

Contributors

275

Organizations

109

Software value

$355K

multidict

A Python library that implements a multidict data structure, which is a dictionary-like object that can store multiple values for the same key. It is particularly useful for handling HTTP headers and query parameters in web applications.

Contributors

245

Organizations

117

Software value

$522K

Chronicle Software

Parent module to include active modules

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