Show HN: PromptUI – AI kept giving me the same boring UI. So I fixed it (promptui.xyz)

I run a UI design agency.

Last month I was building a client project in Cursor. The output looked... fine.

Same rounded corners. Same blue buttons. Same "AI-coded" vibe.

Every project was starting to look identical. The problem? AI has no design context. It defaults to the same generic patterns.

So I built PromptUI for myself. Now before any client project, I:

Paste a URL that matches their brand vibe Extract the full design system (colors, typography, spacing, components)

Feed it directly to Cursor or Claude Code

Result: Client-ready UI. First try. No more "make it look more premium" back-and-forth. $19 once. 20 exports. No subscription.

I use it daily. Maybe you will too.