Convex

TypeScript-first backend platform with real-time sync and serverless functions

3.6(33 reviews)freemiumFounded 2026

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Convex is a backend-as-a-service that provides a reactive database with real-time subscriptions, serverless functions, file storage, and authentication. TypeScript-first developer experience.

Convex provides a unified backend combining a real-time document database, serverless functions (queries and mutations), and file storage. Features include automatic reactive subscriptions, built-in authentication, and TypeScript support throughout the stack. Designed to eliminate boilerplate by handling data consistency and real-time synchronization automatically, reducing the need for separate database, API, and state management layers.

Pros

Replace REST APIs and WebSockets with automatic real-time sync across connected clients
Write strongly-typed database queries and mutations directly in TypeScript
Eliminate complex state management with built-in reactivity and synchronization
Scale serverless functions automatically without infrastructure management

Cons

Vendor lock-in to Convex ecosystem; not self-hostable as of latest version
Pricing scales with database size and function execution time; can become expensive at scale
Learning curve for developers transitioning from traditional REST/GraphQL patterns

Best For

Full-stack JavaScript/TypeScript teams building collaborative applications, dashboards, or real-time features who prioritize developer velocity over infrastructure control.