Life & fun · alternatives · 2026

HashKV is a key-value storage system designed to improve performance over traditional key-value separation approaches. It achieves 4.6 times higher throughput than comparable designs. The system is aimed at developers… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. HashKV-4.6× throughput than key-value separation design [pdf] launched in 2018; newer entries below may have overtaken it.

1. 1SA
   SimpleKV – an extremely simple, anonymous key-value store▲24

   2022 · simplekv.com · its alternatives →

2. 2
   Minikv – Distributed key-value and object store in Rust (Raft, S3 API)▲71

   Hi HN, I'm Emilie, I have a literature background (which explains the well-written documentation!) and I've been learning Rust and distributed systems by building minikv over the past few months. It recently got featured in Programmez! magazine: https://www.programmez.com/actualites/minikv-un-key-value-st... minikv is an open-source, distributed storage engine built for learning, experimentation, and self-hosted setups. It combines a strongly-consistent key-value database (Raft), S3-compatible object storage, and basic multi-tenancy. Features/highlights: - Raft…

   Feb 2026 · github.com · its alternatives →

3. 3
   Tinykv – Minimal file-backed key-value store for Rust▲24

   I built tinykv because I kept reaching for simple persistent storage in Rust projects but found existing solutions either too complex (sled) or unmaintained (pickledb). tinykv focuses on simplicity: JSON-based, serde-powered, with optional TTL. Perfect for CLI tools, game saves, config storage. Would appreciate any feedback from the HN community!

   2025 · crates.io · its alternatives →

4. 4
   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 →

5. 5
   SHA-256 Animation▲1,053

   Animation of the SHA-256 hash function in your terminal. - in3rsha/sha256-animation

   2020 · github.com · its alternatives →

6. 6
   Neural-hash-collider – Find target hash collisions for NeuralHash▲623

   Preimage attack against NeuralHash 💣. Contribute to anishathalye/neural-hash-collider development by creating an account on GitHub.

   2021 · github.com · its alternatives →

7. 7HA
   Hash Archive helps you verify the hashes of insecure downloads▲52

   2016 · hash-archive.org · its alternatives →

8. 8ES
   EloqKV – Scalable distributed ACID key-value database with Redis API▲44

   We're thrilled to unveil EloqKV, a lightning-fast distributed key-value store with a Redis-compatible API. Built on a new database architecture called the Data Substrate, EloqKV brings significant innovations to database design. Here’s the unique features that makes it stand out: - Flexible Deployment: Run it as a single-node in-memory KV cache, a larger-than-memory database or scale to a highly available, distributed transactional database with ease. - High Performance: Achieves performance levels comparable to top in-memory databases like Redis and DragonflyDB, while significantly…

   2024 · eloqdata.com · its alternatives →

9. 9AB
   A bi-directional, persisted KV store that is faster than Redis▲79

   we've been working on a KV store for the past year or so which is 2-6x faster than Redis (benchmark link below) yet disk persisted! so you get the speed of in-memory KV stores but with disk persistence. To achieve this we've created our custom filesystem that is optimized for our special usecase and we're doing smart batching for writes and predictive fetching for reads. In addition to basic operations, it also provides atomic inc/dec, atomic json patch, range scans and a unique key monitoring mechanism (pub-sub) over WebSockets which essentially allows you to receive notification on…

   2025 · hpkv.io · its alternatives →

10. 10
    A portable hash map in C▲176

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

    2024 · github.com · its alternatives →

11. 11
    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 →

12. 12
    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 →

13. 13
    HASH▲127

    Build complex simulations quickly with modular components

    2020 · hash.ai · its alternatives →

14. 14AS
    A Simple GPU Hash Table▲119

    A Simple GPU Hash Table

    2020 · nosferalatu.com · its alternatives →

15. 15AS
    Accelerating SHA256 by 100x in Golang on ARM▲156

    2016 · blog.minio.io · its alternatives →

16. 16
    Keyv▲6

    Simple key-value storage with multiple backend support

    2023 · keyvhq.js.org · its alternatives →

17. 17
    Discohash – Fast Hash▲75

    :rocket: DISCoHAsH - Simple, fast, quality hash in 120 lines. 10GB/s serial (depending on hardware). Also in NodeJS - DO-SAY-GO/DISCoHAsH

    2020 · github.com · its alternatives →

18. 18
    Simple in-memory key/value store written in Elixir using Shards▲80

    Simple in-memory Key/Value Store written in Elixir using `cabol/ex_shards` - cabol/kvx

    2016 · github.com · its alternatives →

19. 19
    Omnihash, a multi-hashing utility▲34

    Hash files, strings, input streams and network resources in various common algorithms simultaneously - Miserlou/omnihash

    2016 · github.com · its alternatives →

20. 20
    Hash File▲10

    Calculate file hashes quickly

    Oct 2025 · apps.apple.com · its alternatives →

21. 21
    Badger – an embeddable, persistent key-value store written in Go▲88

    Fast key-value DB in Go. Contribute to dgraph-io/badger development by creating an account on GitHub.

    2017 · github.com · its alternatives →

22. 22
    Go version of HighwayHash with optimized assembly implementations▲48

    Native Go version of HighwayHash with optimized assembly implementations on Intel and ARM. Able to process over 10 GB/sec on a single core on Intel CPUs - https://en.wikipedia.org/wiki/HighwayHash - minio/highwayhash

    2018 · github.com · its alternatives →

23. 23
    Rain hashes – well designed, simple and fast variable sized hashes▲79

    The fastest 128-bit and 256-bit hash, passes all tests, and under 140 source lines of code. API library and CLI tool in C++ and NodeJS/Wasm - DOSAYGO-STUDIO/rain

    2024 · github.com · its alternatives →

24. 24
    A threaded, TCP, key value store in Haskell▲63

    A multi-threaded, TCP, key-value store inspired by Redis implemented in Haskell. - honza/redish

    2013 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →