v0 by Vercel is best known for turning prompts into polished React/Tailwind UI and Next.js-friendly starters, making it a go-to for quickly exploring layouts and component ideas. The alternatives split into a few clear camps: end-to-end “prompt to shipped app” builders like Lovable and bolt.new that bundle running code and deployment, newer full-stack scaffolders like Base44 (and the more nascent Layout.dev) that emphasize data/auth and app structure, and internal-tool platforms like UI Bakery that prioritize database/API-connected workflows over generated UI code.
In comparing options, we weighed how quickly each tool gets from prototype to a working, deployable product; how well it handles real app concerns like state, auth, databases, and integrations; and how it fits into developer workflows (e.g., GitHub/export and collaboration). We also considered pricing and credit/token economics, reliability as projects grow (regressions, over-rewrites, and rollback/versioning), and the practical reality of support responsiveness when something breaks.