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Convex

Reactive backend with real-time database sync

Realtime DatabasesFree Tier AvailableGrowing
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Overview

Convex is a modern reactive backend platform that automatically keeps your application data in sync across all clients. It combines a database, serverless functions, and real-time subscriptions into a unified TypeScript-first development experience. What makes Convex unique is its reactive data model - when data changes on the server, all subscribed clients update automatically without manual refresh logic. You write TypeScript functions that run on the server, and Convex handles all the infrastructure, caching, and optimization. The platform includes built-in authentication, file storage, and scheduled tasks. Convex is particularly powerful for collaborative applications, real-time dashboards, and any app where data consistency across clients is critical. The developer experience is exceptional with full type safety end-to-end.

Features

Database: NoSQL
Authentication
File Storage
Cloud Functions
Realtime
GraphQL
REST API
Self-Hosted

Tech Stack

TypeScriptRust

Best For

Real-time appsCollaborative toolsWeb appsTypeScript developers

Pricing

Free Tier:Yes
Starting Price:$0
Model:Free tier + usage-based

Details

Deployment:Managed
Founded:2021
Backed By:Y Combinator

Compliance

SOC 2GDPR

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Frequently Asked Questions about Convex

What is Convex?

Convex is a modern reactive backend platform that automatically keeps your application data in sync across all clients. It combines a database, serverless functions, and real-time subscriptions into a unified TypeScript-first development experience. What makes Convex unique is its reactive data model - when data changes on the server, all subscribed clients update automatically without manual refresh logic. You write TypeScript functions that run on the server, and Convex handles all the infrastructure, caching, and optimization. The platform includes built-in authentication, file storage, and scheduled tasks. Convex is particularly powerful for collaborative applications, real-time dashboards, and any app where data consistency across clients is critical. The developer experience is exceptional with full type safety end-to-end.

Is Convex free to use?

Yes, Convex offers a free tier. Free tier + usage-based

What features does Convex offer?

Convex offers NoSQL database, authentication, file storage, cloud functions, real-time updates, REST API, and more.

Can I self-host Convex?

No, Convex is a Managed platform and cannot be self-hosted.

What is Convex best for?

Convex is particularly well-suited for real-time apps, collaborative tools, web apps, typescript developers.