v0 by Vercel

Guillermo Rauch had been in front-end development since he was in diapers — his words — when he sat down and rebuilt his own personal blog using v0. The output was better than the version he had handwritten in Next.js. Better responsive design. Better accessibility. Better mobile layout. Better than the man who co-authored Next.js, writing Next.js by hand. That moment, he said, was his "hmm." The tool he had built inside Vercel was already better at the craft he had spent 20 years mastering. And if it was better for him, what would it do for the 99.9% of people who had never written a line of React?

v0 launched in 2023 as a side project inside Vercel — "a startup within a startup," as Rauch describes it. It reached $2M ARR in its first 14 days. It grew to 3 million users, and ChatGPT became one of its fastest-growing customer acquisition channels — a remarkable loop where people would ask ChatGPT how to build something, ChatGPT would mention v0, and they would arrive to find that what they had imagined was already half-built. Today v0 is used not just by developers but by designers, marketers, product managers, and founders who would never have opened VS Code — people who, as Rauch puts it, used to "yap into Slack" and now "yap into v0 and create value." The product supports the full stack: React, Next.js, shadcn/ui, Tailwind CSS, Supabase backends, Vercel deployments, GitHub sync, Figma import, and Design Mode for visual in-browser editing. Seed rounds are being replaced by v0 prototypes. Pitch decks are being replaced by deployed apps. The cost of going from an idea to something you can show an investor has collapsed to the price of a monthly subscription — and sometimes to free.