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Dev tools · alternatives · 2026

24 alternatives to BranchDB

A blazingly fast in-memory key-value database. Built in C++

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1TA
  2. 2

    Hey there HN! We’re Joe and Stopa, and today we’re open sourcing InstantDB, a client-side database that makes it easy to build real-time and collaborative apps like Notion and Figma. Building modern apps these days involves a lot of schleps. For a basic CRUD app you need to spin up servers, wire up endpoints, integrate auth, add permissions, and then marshal data from the backend to the frontend and back again. If you want to deliver a buttery smooth user experience, you’ll need to add optimistic updates and rollbacks. We do these steps over and over for every feature we build, which can…

    2024 · github.com · its alternatives →

  3. 3EA
  4. 4
  5. 5
    NocoDB▲465

    Free & open source Airtable alternative

    2021 · github.com · its alternatives →

  6. 6

    Recently created a minimal persistent relational database in Go. Main focus was on implementing & understanding working the of database, storage management & transaction handling. Use of B+ Tree for storage engine(support for indexing), managing a Free List (for reusing nodes), Support for transactions, Concurrent Reads. Still have many things to add & fix like query processing being one of the main & fixing some bugs Repo link - https://github.com/Sahilb315/AtomixDB Would love to hear your thoughts

    2025 · github.com · its alternatives →

  7. 7

    One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take…

    2025 · drawdb.app · its alternatives →

  8. 8

    A transactional key-value database written in Go for Linux and macOS - voidDB/voidDB

    2025 · github.com · its alternatives →

  9. 9

    An open-source in-memory graph database

    2020 · its alternatives →

  10. 10

    Open-source database that runs SQL queries continuously

    2015 · its alternatives →

  11. 11

    Hey HN, we want to share HelixDB (https://github.com/HelixDB/helix-db/), a project a college friend and I are working on. It’s a new database that natively intertwines graph and vector types, without sacrificing performance. It’s written in Rust and our initial focus is on supporting RAG. Here’s a video runthrough: https://screen.studio/share/szgQu3yq. Why a hybrid? Vector databases are useful for similarity queries, while graph databases are useful for relationship queries. Each stores data in a way that’s best for its main type of query (e.g.…

    2025 · github.com · its alternatives →

  12. 12

    (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 →

  13. 13
    Textdb▲70

    A simple way to share small amounts of data

    2020 · textdb.dev · its alternatives →

  14. 14

    The most advanced distribution system of NDB Cluster, by Mikael Ronström the inventor of NDB Cluster; made to work for the most advanced ML applications.

    2021 · rondb.com · its alternatives →

  15. 15
    KeyVal▲87

    Free and simple key-value database

    2021 · keyval.org · its alternatives →

  16. 16
    EasyDB▲155

    A one-click ephemeral database

    2019 · its alternatives →

  17. 17
    ZeroDB▲119

    An open-source, end-to-end encrypted database protocol

    2015 · zerodb.io · its alternatives →

  18. 18
    PeerDB▲110

    Fast, native ETL for Postgres

    2023 · peerdb.io · its alternatives →

  19. 19

    A blazing fast ACID compliant NoSQL DataLake with support for storing 17 formats of data. Full SQL and DML capabilities along with Java stored procedures for advanced data processing. - GitHub - blobcity/db: A blazing fast ACID compliant NoSQL DataLake with support for storing 17 formats of data. Fu

    2019 · github.com · its alternatives →

  20. 20SA

    SleekDB is a simple flat file NoSQL like database implemented in PHP without any third-party dependencies that store data in plain JSON files.

    2021 · sleekdb.github.io · its alternatives →

  21. 21
    HelixDB▲105

    An open-source OLTP graph-vector database built in Rust.

    Feb 2026 · helix-db.com · its alternatives →

  22. 22

    CursusDB is an open-source distributed in-memory yet persisted document oriented database system with real time capabilities. - GitHub - cursusdb/cursusdb: CursusDB is an open-source distributed in-memory yet persisted document oriented database system with real time capabilities.

    2024 · github.com · its alternatives →

  23. 23PT
  24. 24
    CrateDB▲52

    A SQL database with native distribution and dynamic schema

    2021 · cratedb.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 →