Which one should I pick for a new project?

I can only answer questions about bvaughn/react-virtualized or react/react.

However, I can clarify what each repo does based on the data:

bvaughn/react-virtualized is a specialized library for efficiently rendering large lists and tabular data through virtualization techniques. It's a third-party package with 27,076 stars that provides components like List, Grid, Table, Masonry, and helpers like CellMeasurer and AutoSizer.

react/react is the core React framework itself—the foundation that powers React applications.

These aren't alternatives to each other. React is required first; it's the base library. react-virtualized is optional—you only add it to your React project if you need to render very large lists or grids efficiently (to avoid performance issues with thousands of DOM nodes).

Typical choice logic:

• Start with React for any new project
• Add react-virtualized only if you're building features with large lists/tables that need performance optimization

They solve different problems and are often used together, not as either/or choices.

FOLLOW_UPS:

• What performance problems does virtualization solve?
• How does CellMeasurer work in react-virtualized?
• What are the main virtualized components available?