Dev tools · alternatives · 2026

24 alternatives to SpacetimeDB

Development at the speed of light.

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

1. 1
   SpacetimeDB 1.0 Is Here▲21

   We just released 1.0 of SpacetimeDB, a database designed for real-time games and applications built in Rust and using WebAssembly stored procedures for running server-side logic.

   2025 · github.com · its alternatives →

2. 2
   SpacetimeDB – A database that replaces your server▲80

   We just released our database, SpacetimeDB, on GitHub under the BSL 1.1 license. It converts to a free software license after a few years. The point of the database is that you upload application logic into the database as a WebAssembly stored procedure, so instead of clients connecting to a webserver they connect directly to the database. The database itself does authentication and you write your own authorization logic just like you would inside a webserver. We’ve developed our game, BitCraft (https://bitcraftonline.com) entirely in this way. All of the game state is stored and…

   2023 · github.com · its alternatives →

3. 3
   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 →

4. 4
   Spacetime 2.0▲208

   Work hour and time zone management for distributed teams.

   2018 · its alternatives →

5. 5
   clientdb▲295

   Build lightning fast apps with instantaneous interactions

   2022 · its alternatives →

6. 6
   Firebase, a scalable real-time backend▲526

   Discover Firebase, Google’s mobile and web app development platform that helps developers build apps and games that users will love.

   2012 · firebase.com · its alternatives →

7. 7MA
   Meteor, a realtime JavaScript framework▲1,386

   2012 · meteor.com · its alternatives →

8. 8
   Spacetime▲240

   Help your distributed team coordinate across time zones 🌎

   2016 · its alternatives →

9. 9
   Spacetime▲166

   Be the first to know about space launches

   2020 · its alternatives →

10. 10
    Spacetime 2.0▲174

    A home for all space lovers.

    2020 · its alternatives →

11. 11
    QuestDB▲194

    Fastest open source database for time-series and analytics

    2020 · questdb.com · its alternatives →

12. 12WM
    We made a real-time editor for web database apps▲121

    2018 · demo.hyperfiddle.net · its alternatives →

13. 13DA
    DriftDB – an open source WebSocket backend for real-time apps▲367

    Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…

    2023 · driftdb.com · its alternatives →

14. 14FL
    Fieldbook: Lightweight Database with a Spreadsheet UI and a REST API▲335

    2015 · fieldbook.com · its alternatives →

15. 15
    Fieldbook▲592

    Create a database, as easily as a spreadsheet

    2015 · fieldbook.com · its alternatives →

16. 16
    TeaTime – distributed book library powered by SQLite, IPFS and GitHub▲307

    Recently there seem to be a surge in SQLite related projects. TeaTime is riding that wave... A couple of years ago I was intrigued by phiresky's post[0] about querying SQLite over HTTP. It made me think that if anyone can publish a database using GitHub Pages, I could probably build a frontend in which users can decide which database to query. TeaTime is like that - when you first visit it, you'll need to choose your database. Everyone can create additional databases[1]. TeaTime then queries it, and fetches files using an IPFS gateway (I'm looking into using Helia so that users are also…

    2024 · github.com · its alternatives →

17. 17
    Textdb.dev – simple data sharing for fun projects▲200

    2020 · textdb.dev · its alternatives →

18. 18
    Bytebase 2.0▲88

    Database schema change and version control for developers

    2023 · bytebase.com · its alternatives →

19. 19
    PumpkinDB, an event sourcing database engine▲190

    2017 · pumpkindb.org · its alternatives →

20. 20EA
    EasyDB – A One-Click Ephemeral Database▲158

    2019 · easydb.io · its alternatives →

21. 21
    restdb.io▲131

    Simple online NoSQL database backend

    2016 · restdb.io · its alternatives →

22. 22
    Airtable, a real-time spreadsheet-database hybrid▲361

    Airtable is a low-code platform for building collaborative apps. Customize your workflow, collaborate, and achieve ambitious outcomes. Get started for free.

    2014 · airtable.com · its alternatives →

23. 23
    Inspector Spacetime from Google▲207

    Google Translate for engineers working with motion

    2017 · google.github.io · its alternatives →

24. 24
    InstantDB▲320

    Complete backend with auth and storage in one prompt

    Apr 2026 · instantdb.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 →