Convex: Real-Time Backend Platform for Modern Web and Mobile Apps
Convex is a serverless backend platform offering a real-time database and cloud functions, optimized for JavaScript and TypeScript developers building modern web and mobile apps.
- Best for
- Real-Time Collaborative Applications
- Key capability
- Real-Time Data Synchronization
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What is Convex?
Convex is a real-time backend platform designed to simplify building modern web and mobile applications. It provides a serverless backend with a real-time database, cloud functions, and an integrated query engine, all accessible through a JavaScript/TypeScript SDK. Convex abstracts away infrastructure management, enabling developers to focus on application logic and user experience.
Key features of Convex
Convex offers a real-time database with automatic synchronization, serverless cloud functions for backend logic, a query engine optimized for performance, and tight integration with frontend frameworks. It supports real-time data updates, offline support, and scalable backend operations without requiring traditional server management.
Real-Time Data Synchronization
Automatic live updates to clients when data changes, enabling collaborative and dynamic user experiences.
Serverless Cloud Functions
Write backend logic without managing servers, triggered by client requests or database changes.
Type-Safe JavaScript/TypeScript SDK
Strongly typed SDK for seamless integration with modern frontend frameworks.
Scalable Infrastructure
Convex handles scaling automatically to support growing user bases and data volumes.
Offline Support
Clients can continue working offline with automatic synchronization when reconnected.
Pros and cons of Convex
Pros
- Simplifies backend development with serverless architecture
- Real-time data synchronization out of the box
- Strong TypeScript support improves developer productivity
- Automatic scaling without infrastructure management
- Good offline support for resilient apps
Cons
- Limited to JavaScript/TypeScript ecosystem
- Pricing details for Pro plan require contacting sales
- Smaller community compared to more established platforms
Key use cases for Convex
Real-Time Collaborative Applications
Build apps that require live updates and synchronization across users, such as chat apps, collaborative documents, and dashboards.
Serverless Backend Development
Develop backend logic without managing servers, using Convex’s cloud functions and database.
Full-Stack JavaScript/TypeScript Apps
Create modern web and mobile apps with seamless integration between frontend and backend using JavaScript and TypeScript.
Rapid Prototyping and MVPs
Quickly build and iterate on prototypes or minimum viable products with minimal backend setup.
Data-Driven Applications
Manage and query application data efficiently with Convex’s real-time database and query engine.
How Convex works
- 1
Initialize Project
Create a new Convex project and install the SDK in your frontend application.
- 2
Define Database Schema
Set up your data models using Convex’s schema definitions.
- 3
Write Cloud Functions
Implement backend logic with serverless functions triggered by client calls or database events.
- 4
Connect Frontend
Use the Convex client SDK to query data and invoke cloud functions from your web or mobile app.
- 5
Deploy and Scale
Deploy your backend to Convex’s cloud infrastructure, which automatically scales with your app’s usage.
Who is using Convex
Convex pricing
Free & Starter
$0/month, then pay as you go
For personal projects and prototypes: 1-6 developers, file storage, text and vector search, crons, auth, Node.js actions, health and insights dashboard and preview deployments. The Starter plan is pay-as-you-go beyond free tier limits.
Professional
$25 per developer/month
Everything in Free & Starter plus 1-20 developers, log streaming, exception reporting, HIPAA/SOC 2 reports, daily backups, custom domains and email support.
Business & Enterprise
$2,500 monthly minimum
Everything in Professional plus 50+ developers, SAML/SSO, service SLAs, high-scale dedicated deployments, custom MSA and volume pricing.
Plans and prices are as published by the vendor and can change. Check the official site before you buy. Open the pricing page (opens in a new tab)
Frequently asked questions about Convex
Convex primarily supports JavaScript and TypeScript for both frontend and backend development.
Yes, Convex supports offline usage with automatic data synchronization when the client reconnects.
Yes, Convex is designed to scale and support production-grade applications with real-time requirements.
While both offer real-time databases and serverless functions, Convex emphasizes type safety, developer experience with TypeScript, and a unified backend platform.
This tool is designed to help users accomplish its core tasks more efficiently. It is typically used by individuals or teams looking to improve productivity and workflow.
The best alternative depends on your workflow, features you need, and budget. Compare plans, integrations, and output quality to choose the closest fit.
Data handling and security practices vary by provider. Review the official privacy policy to understand how your data is stored and used.
Conclusion
Everything in this backend is written in TypeScript: the database, functions, workflows, sync, search and file storage all come from one platform. Queries are reactive, so users see the latest data through real-time sync, and ACID transactions keep concurrent writes from corrupting data. End-to-end type safety plus automatic caching and scaling are built in, and backend logic runs without managing servers.
Sandboxed Convex Components add building blocks such as managed work pools, workflows and AI agents with vector search. It is designed for frontend and full-stack JavaScript/TypeScript developers and for startups that need a rapid backend setup. The Free & Starter plan costs nothing up front and becomes pay-as-you-go beyond the free limits, while Professional is charged per developer and Business & Enterprise has a monthly minimum.
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