Blueprint is a React-based UI toolkit for the web.
It is optimized for building complex, data-dense web interfaces for desktop applications. If you rely heavily on mobile interactions and are looking for a mobile-first UI toolkit, this may not be for you.
Blueprint 3.0 supports multiple major versions of Blueprint on the same page through removing global styles and deconflicting selectors by changing the namespace. It also restores support for React 15 in most packages.