Dev tools · alternatives · 2026

24 alternatives to A portable hash map in C

A small, portable, linear probing hash map. Contribute to e-dant/salmagundi development by creating an account on GitHub.

A portable hash map library written in C that provides a data structure for storing and retrieving key-value pairs. Designed for developers building C applications who need efficient hash table functionality. The… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A portable hash map in C launched in 2024; newer entries below may have overtaken it.

1
A hash array-mapped trie implementation in C▲171
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
2
Simple Hash Table Implementation for C▲42
Simple hash table implementation for C. Contribute to watmough/jwHash development by creating an account on GitHub.
2015 · github.com · its alternatives →
3
A concurrent thread-safe hash map implemented in C++▲17
A concurrent thread-safe hash map implemented in C++ - kshk123/hashMap
2017 · github.com · its alternatives →
4
I built a web framework in C▲420
a lightweight web framework in c. Contribute to ashtonjamesd/lavandula development by creating an account on GitHub.
2025 · github.com · its alternatives →
5AS
A Simple GPU Hash Table▲119
A Simple GPU Hash Table
2020 · nosferalatu.com · its alternatives →
6
Integer Map Data Structure▲91
This project presents a new data structure for storing ordered integer maps. The proposed data structure is a compressive, cache-friendly, radix tree that has performance comparable to an unordered map (`std::unordered_map`) and is an order of magnitude faster than an ordered map (`std::map`).
2024 · github.com · its alternatives →
7AP
A Probing Hash Table Framework▲27
2016 · chara.cs.illinois.edu · its alternatives →
8IB
I built a minimal Forth-like stack interpreter library in C▲47
This weekend I created stacklib.h - a single-header library that brings Forth-style stack operations to C. It implements a basic interpreter with: - Stack operations (push/pop/dup/swap/over/drop) - Arithmetic (+, -, *, /) - Output (., emit, cr) - Stack inspection (.s, depth) Example usage: Stack s; stack_init(&s); dict_init(); exec(&s, "10 20 + ."); // Prints "30" exec(&s, "1 2 3 4 .s"); // Shows stack contents The library is self-contained, requires no dependencies, and handles basic error checking. It was inspired by wanting to understand…
2025 · its alternatives →
9
A simple garbage collector for C▲192
Simple, zero-dependency garbage collection for C. Contribute to mkirchner/gc development by creating an account on GitHub.
2019 · github.com · its alternatives →
10
I made a C program to create a vanity SHA-1 hash for a text file▲58
2025 · gist.github.com · its alternatives →
11
A Lock- and wait-free hashtable (and an array too), written in C▲24
📶 A lock- and wait-free hashtable (and an array too) - mulle-concurrent/mulle-concurrent
2016 · github.com · its alternatives →
12
A Fast, Malloc-Free C++14 Json Parser and Encoder▲98
Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod
2014 · github.com · its alternatives →
13
An expression parser supporting multiple types▲33
This C library is part of a main project aimed at providing a reactive key-value (KV) database. The data is typed (numbers, strings, dates, or booleans) and can include formulas with references to other entries. Clients connected to this database receive a real-time data stream with updates to the subscribed keys, allowing them to react to changes and their dependencies. Essentially, it’s like building a distributed Excel, where data and formulas dynamically update across the system. I couldn’t find any libraries that offered the full set of features I needed for evaluating expressions, so I…
2024 · github.com · its alternatives →
14
Cachegrand – a fast OSS Key-Value store built for modern hardware▲121
I am the author of the platform, happy to reply to any question you might have! It scales up really nicely thanks to a year of research and development of the hashtable implemented in cachegrand, on the hardware used for benchmarking, an AMD EPYC 7502P, it was able to reach up to 5mln GET QPS and 4.5mln SET QPS, with batching up to 60mln GET QPS and up to 26MLN SET QPS. cachegrand is fast, it's fully Open Source, it's under a BSD 3-clause license - it can be used easily as standalone platform or incorporated in other ones without any licensing issue - and we are working to expand the Redis…
2022 · github.com · its alternatives →
15
CaskDB – project to teach you building a key value store▲175
(educational) build your own disk based KV store. Contribute to avinassh/py-caskdb development by creating an account on GitHub.
2022 · github.com · its alternatives →
16
Hashmap.me – Simple HTTP-Based Data Storage and Retrieval▲37
I'm excited to share Hashmap.me, a small tool I've built to simplify data storage and retrieval. It's a straightforward service that allows developers to store data records via HTTP requests and retrieve them easily, all without the hassle of setting up and managing a database. Initially I built this because I was tired of creating a database to prototype my own projects, I just wanted to persist my in memory cache between restarts early on. Each hashmap you create corresponds to its own collection in MongoDB. Perfect for small projects, quick prototypes, or learning purposes. I'd love to…
2024 · hashmap.me · its alternatives →
17
A reimplementation of Google's sparsehash in C▲22
A simple re-implementation of Google's sparsehash as a learning excercise. - qpfiffer/Simple-Sparsehash
2015 · github.com · its alternatives →
18
A Golang Package for Consistent Hashing with Bounded Loads▲50
A Go library that implements Consistent Hashing and Consistent Hashing With Bounded Loads. - lafikl/consistent
2017 · github.com · its alternatives →
19
C library for Linux to easily create modular projects▲56
C simple and elegant implementation of an actor library - GitHub - FedeDP/libmodule: C simple and elegant implementation of an actor library
2018 · github.com · its alternatives →
20
libcodr7 – fundamental collections in the spirit of C▲67
fundamental tools in the spirit of C. Contribute to codr7/libcodr7 development by creating an account on GitHub.
2019 · github.com · its alternatives →
21
A simple way to write standalone C programs for i386▲147
A simple way to write standalone C programs for i386 - luke8086/boot2c
2019 · github.com · its alternatives →
22
Chan – pure C implementation of Go channels▲150
Pure C implementation of Go channels. Contribute to tylertreat/chan development by creating an account on GitHub.
2014 · github.com · its alternatives →
23
The BLAKE3 hash function running on a 6502 microprocessor▲91
the BLAKE3 hash function implemented in 6502 assembly - oconnor663/blake3-6502
2022 · github.com · its alternatives →
24
A work-in-progress C compiler from scratch▲159
Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
2021 · github.com · its alternatives →

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