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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. 2IA

    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. 4TD
  5. 5RF
  6. 6
    NocoDB▲472

    Free & open source Airtable alternative

    2021 · its alternatives →

  7. 7NO
  8. 8AD

    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 →

  9. 9VA
  10. 10

    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 →

  11. 11AS
  12. 12

    An open-source in-memory graph database

    2020 · its alternatives →

  13. 13CP
  14. 14
    clientdb▲295

    Build lightning fast apps with instantaneous interactions

    2022 · its alternatives →

  15. 15HO

    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 →

  16. 16
    Textdb▲70

    A simple way to share small amounts of data

    2020 · its alternatives →

  17. 17
    KeyVal▲87

    Free and simple key-value database

    2021 · its alternatives →

  18. 18
    EasyDB▲155

    A one-click ephemeral database

    2019 · its alternatives →

  19. 19
    ZeroDB▲119

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

    2015 · its alternatives →

  20. 20
    PeerDB▲110

    Fast, native ETL for Postgres

    2023 · its alternatives →

  21. 21SA
  22. 22
    HelixDB▲105

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

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

  23. 23T2
  24. 24AD

    Hey hackernews! I'd like to share a hobby and passion project I've been working on for almost a year now. It's an open-source storage engine (underlying component of a database(s)) similar to that of LevelDB/RocksDB but written entirely in C. The storage engine is called TidesDB. TidesDB is written entirely in C. It's designed as a fast, transactional key-value storage engine built on a log-structured merge-tree (LSM-tree) architecture. My journey with TidesDB began nearly 2 years ago whilst I was experimenting with various data structures and databases in Go. When I encountered the…

    2025 · 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 →