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Dev tools · alternatives · 2026

24 alternatives to Knuckleball – An in-memory data structure server

Data structure server. Contribute to ral99/knuckleball development by creating an account on GitHub.

Knuckleball is an in-memory data structure server launched in 2016. It stores and manages data structures in RAM for fast access, making it suitable for developers building applications that require quick data… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Knuckleball – An in-memory data structure server launched in 2016; newer entries below may have overtaken it.

  1. 1

    A real-time gaming experience for baseball fans.

    2015 · its alternatives →

  2. 2TA
  3. 3

    A Go SQL query builder and struct mapper. Contribute to samonzeweb/godb development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  4. 4TF

    I always enjoy reading posts about indie game development and looking at the source code of games other people have built. So for any game I release I naturally I want to do the same. https://github.com/Mknsri/HockeySlam Hockey Slam is a hockey shootout game on Android which I built almost from scratch. Some of the engine features include 3D graphics with PBR materials, a rudimentary physics system, replays, a multithreaded job system and a hot-reload DLL platform for developing on Windows. I detailed the creation of the game in it's own post, but now that time has passed…

    2023 · its alternatives →

  5. 5
    MemSQL▲114

    World's fastest in-memory database

    2015 · singlestore.com · its alternatives →

  6. 6

    An OKF-backed Model Context Protocol (MCP) server delivering persistent long-term memory and SQLite FTS5 search for AI agents. - fellowgeek/mcp-memory

    Aug 2026 · github.com · its alternatives →

  7. 7

    A totally proof-of-concept FoundationDB based network block device backend - dividuum/fdb-nbd

    2018 · github.com · its alternatives →

  8. 8

    Fun, secure and client side file encryption using chess

    2025 · castlefile.xyz · its alternatives →

  9. 9

    The Swiss army knife of data examination and manipulation - kstenerud/bo

    2018 · github.com · its alternatives →

  10. 10

    A lightweight full-text index server with a focus on speed and efficiency. - GitHub - f-prime/fist: A lightweight full-text index server with a focus on speed and efficiency.

    2019 · github.com · its alternatives →

  11. 11

    Hi HN, I’m Samrith, creator of Hyperterse. Today I’m launching Hyperterse 2.0, a schema-first framework for building MCP servers directly on top of your existing production databases. If you're building AI agents in production, you’ve probably run into agents needing access to structured, reliable data but wiring your business logic to MCP tools is tedious. Most teams end up writing fragile glue code. Or worse, giving agents unsafe, overbroad access. There isn’t a clean, principled way to expose just the right data surface to agents. Hyperterse lets you define a schema over your data and…

    Feb 2026 · hyperterse.com · its alternatives →

  12. 12

    Wannabe Main Memory Database and More. Contribute to ademakov/MainMemory development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  13. 13

    Very challenging and yet oddly addictive iOS Game

    2016 · apps.apple.com · its alternatives →

  14. 14
    PKTBALL▲59

    Endless arcade smash sport

    2016 · its alternatives →

  15. 15

    eruo

    2016 · play.google.com · its alternatives →

  16. 16

    I had already posted the project a couple of years ago, and it gained some interest, but a lot of stuff has been done since then, especially regarding performance, a completely new JSON store, a REST API, various internals refactored, an improved JSONiq based query engine allowing updates, implementing set-oriented join optimizations, a now already dated web UI, a new Kotlin based CLI, a Python and TypeScript client to ease the use of Sirix... First prototypes from a precursor stem already from 2005. So, what is it all about? The system uses ideas from ZFS (a keyed index trie, storing…

    2023 · github.com · its alternatives →

  17. 17SA
  18. 18

    [Community] Play Battleships on PostgreSQL. Contribute to selectel/sql-battleships development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  19. 19

    MCP server that lets your AI assistant remember everything about your home. - impactjo/home-memory

    Apr 2026 · github.com · its alternatives →

  20. 20BA
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    Ploopy▲72

    An open-source trackball.

    2019 · ploopy.co · its alternatives →

  22. 22

    Ball is life.

    2015 · ballking.qwiboo.com · its alternatives →

  23. 23
    3 balls▲68

    Force touch enabled juggling game

    2015 · apps.apple.com · its alternatives →

  24. 24

    Vector databases store memories. They don't manage them. After 10k memories, recall quality degrades because there's no consolidation, no forgetting, no conflict resolution. Your AI agent just gets noisier. YantrikDB is a cognitive memory engine — embed it, run it as a server, or connect via MCP. It thinks about what it stores: consolidation collapses duplicate memories, contradiction detection flags incompatible facts, temporal decay with configurable half-life lets unimportant memories fade like human memory does. Single Rust binary. HTTP + binary wire protocol. 2-voter + 1-witness HA…

    Apr 2026 · github.com · its alternatives →

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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 →