Once UI Core and the 100+ blocks stay free and MIT for everyone.
FAQ
Frequently asked questions
What is Stack?
Stack is a production-ready Next.js app built on Once UI. You pick the surfaces your product needs and the CLI writes one app with only those in it: auth, billing, a dashboard and a marketing site already wired together and on brand.
Which surfaces can I pick?
Take any of them, alone or together:
Landing and marketing site with a blog
Dashboard with teams, roles and billing
Docs
Store
AI chat
API product
Editor and timeline
Agency site with case studies
Journal
Personal spotlight
Do I own the code?
Yes. The CLI writes a plain Next.js project into your own repository. Surfaces you leave out are not in it at all, so there is no dead code to delete.
Does it work with coding agents?
Every project ships an AGENTS.md that maps where each part of the app lives, so Claude Code, Cursor and other agents go straight to the files a task needs.
How much does it cost?
Stack is part of the Once UI Pro plan, together with commercial use of the templates. See the current price on the Once UI pricing page.