Hyper UI Vault is the interaction layer for React and Next.js sites, built for frontend developers, design engineers, agencies, and product teams that want their interfaces to feel authored instead of assembled. It gives you source-first scroll systems and cursor effects so you can add custom-feeling motion without stitching together a separate animation stack. You also get text reveals, page transitions, loaders, backgrounds, and WebGL scenes, which removes the blank, static moments that make product pages feel flat. Because Vault installs as real files in your project and ships a free core, you can inspect, edit, and tune every effect instead of fighting a rented dependency. With 130 effects available, you can ship polished interaction details faster.