v0 by Vercel

What it is

v0 turns plain-English prompts into React + Tailwind components and full page layouts, rendered live and deployable to Vercel in a click. It leans design-and-frontend rather than full backend, and the output is real, clean code — not a throwaway mockup. For a PM working with an engineering team that ships in React, it’s the cleanest bridge from “here’s the idea” to “here’s a component the devs can actually use.”

Our verdict

The best choice when your prototype’s job is to align on UI and then get reused, not thrown away. The generated components are genuinely production-grade code, so a designer or engineer can pick them up instead of rebuilding from scratch — which is more than most builders in this category can claim.

Where it falls short: it’s frontend-first. There’s no real backend, so anything needing login, saved data, or business logic won’t actually work — it looks live but the buttons don’t persist anything. The free tier is stingy too: $5 of credits and a 7-message daily cap means you’ll hit the wall fast on a real project, and free users can’t buy more credits.

Get value in 10 minutes

1. Go to v0.dev and sign in with a Vercel account.
2. Prompt with specifics: “A dashboard page for a SaaS admin: left sidebar nav, a top KPI row with 4 stat cards, a data table of recent signups with status badges, and a filter bar. Use a clean, modern light theme.”
3. Iterate in chat on layout and copy until the screen matches your vision.
4. Copy the component code (or deploy to a preview URL) and drop it into your team’s Slack for the design/eng review — you’re handing them real code, not a screenshot.