nowfound

Life & fun · alternatives · 2026

CC

24 alternatives to Concurrent cuckoo hashing – fast, compact, multi-reader

A blog about computer science, systems, technology, and sometimes vegan cooking.

David Andersen's blog covers computer science, systems, and technology topics with occasional posts about vegan cooking. The site features technical discussions on subjects like concurrent data structures, including… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Concurrent cuckoo hashing – fast, compact, multi-reader launched in 2013; newer entries below may have overtaken it.

  1. 15N
  2. 2

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

    2021 · github.com · its alternatives →

  3. 3

    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 →

  4. 4

    We wrote our inference engine on Rust, it is faster than llama cpp in all of the use cases. Your feedback is very welcomed. Written from scratch with idea that you can add support of any kernel and platform.

    2025 · github.com · its alternatives →

  5. 5
    Hashnode▲250

    A friendly and inclusive Q&A network for coders

    2015 · hashnode.com · its alternatives →

  6. 6

    filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.

    2024 · words.filippo.io · its alternatives →

  7. 7

    Immutable, scalable, and easy to use ledger service. - hoophq/sequence

    2020 · github.com · its alternatives →

  8. 8

    Cuckoo Filter implementation in Go, better than Bloom Filters (unmaintained) - irfansharif/cfilter

    2016 · github.com · its alternatives →

  9. 9
    HASH▲127

    Build complex simulations quickly with modular components

    2020 · hash.ai · its alternatives →

  10. 10

    Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…

    2024 · github.com · its alternatives →

  11. 11

    A Fully Homomorphic Encryption Brainfuck virtual machine - f-prime/arcanevm

    2019 · github.com · its alternatives →

  12. 12

    📶 A lock- and wait-free hashtable (and an array too) - mulle-concurrent/mulle-concurrent

    2016 · github.com · its alternatives →

  13. 13

    Proof of Concept : generating collisions on a neural perceptual hash - collisionLSH.py

    2021 · gist.github.com · its alternatives →

  14. 14

    A concurrent thread-safe hash map implemented in C++ - kshk123/hashMap

    2017 · github.com · its alternatives →

  15. 15

    Concurrency in UIKits, browsers and web servers

    2016 · soundcloud.com · its alternatives →

  16. 16

    Fast PUT/GET/DELETE in-memory key-value store for lookaside caching - jonhoo/cucache

    2015 · github.com · its alternatives →

  17. 17

    SHA256 sentence: discover a SHA256 checksum that matches a sentence's description of hex digit words. - joelparkerhenderson/sha256-sentence

    2023 · github.com · its alternatives →

  18. 18

    Tandem is a cryptographic engine for executing programs using Secure Multi-Party Computation (MPC), which allows 2 parties to compute a function without revealing their private inputs. The classic example from cryptography is the millionaires' problem, where two millionaires compute who is richer without revealing their wealth to each other. MPC has in the past been mostly confined to academia, but thanks to some recent papers has finally become fast enough for practical applications. Tandem uses Garbled Circuits, encrypted circuits consisting of boolean gates. While there have been other…

    2022 · github.com · its alternatives →

  19. 19

    A simple re-implementation of Google's sparsehash as a learning excercise. - qpfiffer/Simple-Sparsehash

    2015 · github.com · its alternatives →

  20. 20BA

    Hi HN, Erik here. Today we launch Butter, an OpenAI-compatible API proxy that caches LLM generations and serves them deterministically on revisit. Since April, we’ve been working on this concept of “muscle memory,” or deterministic replay, for agent systems performing automations. You may recall our first post in May, launching a python package called Muscle Mem: https://news.ycombinator.com/item?id=43988381 Since then, the product has evolved entirely, now taking the form of an LLM Proxy. For a deep dive into this process, check out:…

    2025 · docs.butter.dev · its alternatives →

  21. 21

    I just released the new version 0.4.0 which introduces a concurrent and a non-concurrent version of both lists.

    2025 · github.com · its alternatives →

  22. 22

    A beautiful method of hash visualization based on Conway’s Game of Life. - wolfmcnally/LifeHash

    2019 · github.com · its alternatives →

  23. 23

    ⚡ Pure-Rust WebGPU inference engine — OpenAI-API compatible, GGUF native, runs on any GPU. No Python. No llama.cpp. Single binary. - Michael-A-Kuykendall/shimmy

    2025 · github.com · its alternatives →

  24. 24
    Dharma▲7

    An open protocol for borrowing/lending cryptoassets

    2018 · dharma.io · its alternatives →

Also compare

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 →