I built Cardly because I kept finding expired gift cards in my drawer or forgetting how much balance was left on them. I wanted a simple, mobile-friendly way to track them without checking 5 different websites.

The Tech Stack:

    Frontend: Next.js 14 (App Router), TypeScript, Tailwind CSS
    Auth: Supabase with Google OAuth
    State/Storage: React Context API + LocalStorage (currently user-scoped local persistence)

    Visual dashboard for total value/spending
    Color-coded expiration alerts (Red < 7 days, Yellow < 30 days)
    Works offline (data persists locally)

I'd love to hear your feedback on the code structure or features you think are missing.