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AI Web Apps·Freemium

Convex

Reactive backend platform with AI agents and Chef — a no-code app builder built on Convex.

What is Convex, in two sentences

Convex is a reactive backend platform with AI agents and Chef — a no-code app builder built on Convex. Convex is a reactive backend platform where database queries and mutations automatically propagate updates to subscribed clients in real time.

About Convex

Convex is a reactive backend platform where database queries and mutations automatically propagate updates to subscribed clients in real time.

Its edge is the reactive model plus a TypeScript-first design that carries end-to-end type safety from database queries through to the frontend. It also ships Convex Chef, an AI agent that generates full-stack TypeScript applications from natural-language prompts inside the platform, and the platform is open source with code on GitHub.

It fits TypeScript developers building real-time apps who want the backend and type safety handled together. Weigh two caveats: the free tier limits database storage, function calls, and bandwidth, which can constrain larger projects; and Convex uses its own proprietary backend model, creating vendor lock-in for schema, functions, and query patterns.

Among AI web-app platforms, Convex pairs a reactive backend with an in-platform app-building agent, rather than being a code-generation front end alone.

Sources: this listing

What it does well

  • Convex is a reactive backend platform where database queries and mutations automatically propagate updates to subscribed clients in real time.
  • Convex Chef is an AI agent that can generate full-stack TypeScript applications from natural language prompts directly inside the platform.
  • The platform is TypeScript-first, providing end-to-end type safety from database queries through to the frontend.
  • Convex is open source with its source code available on GitHub.

Where it falls short

  • The free tier imposes limits on database storage, function calls, and bandwidth, which may constrain larger projects.
  • Convex uses its own proprietary backend model, creating vendor lock-in for schema, functions, and query patterns.

Tagged

  • Web-based
  • Agentic Mode
  • Free
  • Freemium
  • Open Source

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Frequently asked questions

What is Convex?
Convex is a reactive backend platform with AI agents and Chef — a no-code app builder built on Convex.
Is Convex free?
Convex offers a free tier and paid plans with higher limits or premium features.
What platforms does Convex support?
Convex runs on web.
What category does Convex belong to?
Convex is in the AI Web Apps category — Web apps with AI baked in — built for everything from journaling to research. Submitter-shipped products live here.
What are the downsides of Convex?
The free tier imposes limits on database storage, function calls, and bandwidth, which may constrain larger projects. Convex uses its own proprietary backend model, creating vendor lock-in for schema, functions, and query patterns.