SpacetimeDB
Development at the speed of light.
SpacetimeDB launched on March 10, 2026 with 18 votes, #910 of 23,380 launches that month and more than 95% of that year's launches.
What it does
SpacetimeDB is a real-time backend framework and database for apps and games. It replaces both your server and database. SpacetimeDB 2.0 brings first class support for web development.
Spacetime is a real-time backend framework and database for apps and games. Write server logic in TypeScript, C#, C++, or Rust with automatic client synchronization.
Spacetime is a reactive backend platform that AI agents love: database, server logic, auth, deployment, and real-time sync in one place. LLMs go much further with Spacetime because there's no glue to wire up, no extra services to misconfigure, and one type system across your client, server, and database. Your agent gets it right the first time. Select your preferred LLM, and try building a full Discord clone with AI. Spacetime automatically publishes updates to your clients so they're always in sync. Your server code is embedded into the database to give you extreme flexibility and type safety. Select your preferred language and try editing the server code to see the behavior of this app…from spacetimedb.com
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SpacetimeDB 1.0 Is Here2025 · github.com · ▲21We 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.
SpacetimeDB – A database that replaces your server2023 · github.com · ▲80We 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…
InstantDB – A Modern Firebase2024 · github.com · ▲1,145Hey 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…


Firebase, a scalable real-time backend2012 · firebase.com · ▲526Discover Firebase, Google’s mobile and web app development platform that helps developers build apps and games that users will love.
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