Convex

End-to-end reactive backend with built-in real-time subscriptions and serverless functions.

Overview

Convex is a full backend-as-a-service that treats real-time updates as a first-class citizen. Developers write functions that query data, and Convex automatically manages subscriptions to push updates to clients, eliminating the need for manual WebSocket management or complex polling logic.

Best for

• real-time dashboards
• collaborative task managers
• data-heavy interactive applications

Trade-offs

What XeroHack pre-wires

When you pick Convex in the interview, the engine emits these files into your scaffold:

• convex-nextjs-starter
• convex-react-starter