Dev tools · alternatives · 2026

24 alternatives to PumpkinDB, an event sourcing database engine

PumpkinDB is an event sourcing database engine launched in 2017. It is designed for developers who need to build systems based on event sourcing principles, where data changes are captured as immutable events rather… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. PumpkinDB, an event sourcing database engine launched in 2017; newer entries below may have overtaken it.

1. 1
   InstantDB – A Modern Firebase▲1,145

   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 →

2. 2
   Light implementation of Event Sourcing using PostgreSQL as event store▲231

   Hi everyone, If you have a Java Spring Boot application with a PostgreSQL database, you can implement Event Sourcing without introducing new specialized databases or frameworks. If you have an application dealing with an entity called Order, you should adopt Event Sourcing to keep track of all changes, and know how the Order got into the current state. Event Sourcing gives you: 1. the true history of the system (audit and traceability), 2. the ability to put the system in any prior state (debugging), 3. the ability to create read projections from events as needed to respond to new demands.…

   2023 · github.com · its alternatives →

3. 3EA
   EasyDB – A One-Click Ephemeral Database▲158

   2019 · easydb.io · its alternatives →

4. 4
   Textdb.dev – simple data sharing for fun projects▲200

   2020 · textdb.dev · its alternatives →

5. 5
   NocoDB▲465

   Free & open source Airtable alternative

   2021 · github.com · its alternatives →

6. 6FA
   FaunaDB, a strongly consistent, globally distributed cloud database▲131

   2017 · fauna.com · its alternatives →

7. 7
   NocoDB – Open-Source Airtable Alternative▲562

   🔥 🔥 🔥 A Free & Self-hostable Airtable Alternative. Contribute to nocodb/nocodb development by creating an account on GitHub.

   2021 · github.com · its alternatives →

8. 8FL
   Fieldbook: Lightweight Database with a Spreadsheet UI and a REST API▲335

   2015 · fieldbook.com · its alternatives →

9. 9
   ScratchDB – Open-Source Snowflake on ClickHouse▲261

   Hello! For the past year I’ve been working on a fully-managed data warehouse built on Clickhouse. I built this because I was frustrated with how much work was required to run an OLAP database in prod: re-writing my app to do batch inserts, managing clusters and needing to look up special CREATE TABLE syntax every time I made a change. I found pricing for other warehouses confusing (what is a “credit” exactly?) and worried about getting capacity-planning wrong. I was previously building accounting software for firms with millions of transactions. I desperately needed to move from Postgres to…

   2023 · github.com · its alternatives →

10. 10
    InstantDB▲320

    Complete backend with auth and storage in one prompt

    Apr 2026 · instantdb.com · its alternatives →

11. 11SA
    SpreadsheetDB – A database that you can query with spreadsheets▲144

    2017 · spreadsheetdb.io · its alternatives →

12. 12
    Bunny Database▲244

    The content delivery platform that truly hops.

    Feb 2026 · bunny.net · its alternatives →

13. 13
    Jitsu▲221

    Open-source event collection and data integration.

    2020 · jitsu.com · its alternatives →

14. 14
    I built an open source event-management system▲175

    This is a Python/Django based event management system. - iyanuashiri/meethub

    2018 · github.com · its alternatives →

15. 15
    QuestDB▲194

    Fastest open source database for time-series and analytics

    2020 · questdb.com · its alternatives →

16. 16
    CapybaraDB Beta▲112

    Semantic search made easy

    2025 · its alternatives →

17. 17
    PipelineDB▲62

    Realtime analytics database

    2014 · its alternatives →

18. 18
    Bytebase 2.0▲88

    Database schema change and version control for developers

    2023 · bytebase.com · its alternatives →

19. 19
    EventQL – Open-source distributed SQL analytics database in C++11▲90

    Distributed "massively parallel" SQL query engine. Contribute to eventql/eventql development by creating an account on GitHub.

    2016 · github.com · its alternatives →

20. 20
    Announcing the FaunaDB Add-On for Netlify▲49

    Realize the speed, agility and performance of a scalable, composable web architecture with Netlify. Explore the composable web platform now!

    2019 · netlify.com · its alternatives →

21. 21
    Restdb.io – a plug and play database service▲101

    Simple online database service in the cloud with NoSQL, REST API, low code javascript hooks, MongoDB support and more. Perfect for API automation, custom development, enterprise, backoffice, serverless backends, database driven websites. It provides easy collaboration and data management with secure

    2016 · restdb.io · its alternatives →

22. 22SR
    SchemaFreeDB - Rapid Database Development▲11

    2012 · schemafreedb.com · its alternatives →

23. 23PT
    PouchDB - The JavaScript database that syncs▲82

    2013 · pouchdb.com · its alternatives →

24. 24
    Event Horizon – CQRS/ES Toolkit for Go▲40

    Event Sourcing for Go! Contribute to looplab/eventhorizon development by creating an account on GitHub.

    2014 · 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 →