Build web applications with your own Convex backend—no other database or provider is supported.

Web App Builder

Build web applications with your own Convex backend—no other database or provider is supported.

Access the Builder

•Go to Execution → Build in the sidebar.

Getting Started

1.Update your build prompt to describe what you want to build. You can enhance it with AI for clarity if needed.
2.Set up your backend configuration (see options below).
3.Click Start Building. This will take you to the builder page where you can generate and refine your app.

Backend Setup: Convex Only

1. Bring Your Own (BYO) Convex

What: Use your own Convex project and credentials.
Requirements: A Convex project (convex.dev), your Convex deployment URL, your Convex deploy key.

In the Builder, open Settings → Backend.
Enter your Convex deployment URL and deploy key.
Save to connect. Once connected, you can start building.

2. "Connect Now" (Managed Convex, Paid Users Only)

What: Instantly connect to a managed Convex backend provided by SparkBuilt. No Convex account or keys required.
Who: Available for paid users only.

Click Connect Now in the backend setup.
Your project will be linked to a managed Convex instance, ready to use immediately.

Notes: All data and operations use the connected Convex project (your own or managed). Managed Convex is only available to paid users. BYO is available to everyone.

Minimal Setup Checklist

Create a Convex project
Copy your deployment URL and deploy key
Enter them in the Builder settings