Convex
The reactive backend that keeps your app in sync
Overview
Convex rethinks backend development around reactivity. When data changes in the database, every connected client that depends on that data updates automatically - no polling, no WebSocket management, no manual cache invalidation. Your frontend always shows the current state.
Server functions in Convex are TypeScript functions that run on Convex's infrastructure with full ACID transactions. Queries are automatically cached and re-executed when their dependencies change. Mutations update the database with transactional guarantees. This model eliminates an entire category of consistency bugs.
For real-time applications - collaborative tools, dashboards, chat, live updates - Convex dramatically reduces the backend code you need to write. The reactivity is built into the platform, not bolted on as an afterthought.
Key Features
Reactive Queries
Data changes automatically propagate to connected clients
ACID Transactions
Full transactional guarantees on every mutation
Server Functions
TypeScript functions with automatic caching and revalidation
File Storage
Built-in file upload and serving with CDN delivery
Scheduling
Cron jobs and delayed actions built into the platform
Auth Integration
Built-in auth with Clerk, Auth0, and custom providers
Why We Recommend Convex
Convex eliminates the most tedious parts of backend development - cache invalidation, real-time sync, and consistency management. For applications where data freshness matters, it saves weeks of development time.