Lovable

Lovable (formerly GPT Engineer) positions itself as the AI that builds complete applications, not just assists with code. Give it a description, and it generates a full-stack app with database, authentication, and deployment.

Key Features:

• Complete Applications - Generates frontend, backend, and database together
• Supabase Integration - Built-in backend with authentication and data storage
• Visual Editing - Modify the generated app through a visual interface
• GitHub Sync - Changes sync to a repository for version control

What Lovable generates:

• React Frontend - Modern UI with component architecture
• Database Schema - Tables and relationships based on your requirements
• Authentication - User signup, login, and session management
• API Endpoints - Backend routes connecting frontend to data

Lovable is impressive for how much it can create from a simple prompt. The quality is suitable for MVPs, prototypes, and personal projects. For production applications, you'll likely need to refactor and extend, but having a working starting point can save days of initial development.