When researchers paste DNA sequences into online tools, they rarely consider where that data goes. Yet a single gene sequence could represent months of lab work, unpublished findings, or even patent-pending discoveries. This is why I believe browser-based bioinformatics tools should be built with privacy-by-design principles — processing everything client-side whenever possible. The Problem with Cloud-Based Bioinformatics Most bioinformatics platforms follow a familiar pattern: User pastes seque