Backbone.js vs React: which is better for modern front-end apps?

React is generally preferred over Backbone.js for building modern front-end applications. React’s component-driven architecture, active ecosystem, and support for the virtual DOM make it faster and easier to manage large, interactive UIs. Backbone.js is more flexible and lighter but requires additional code and libraries to provide the structure and features React offers out of the box. Most teams choose React for complex, fast, and mobile-responsive front-end apps today.