Inferno

React-like JavaScript library for building high-performance user interfaces on both the client and server. Uses a virtual DOM with a familiar component model and JSX syntax, targeting fast rendering and smooth 60 FPS experiences even on mobile devices.

Inferno offers a React-compatible API and lifecycle concepts, with inferno-compat enabling migration from existing React 15.x applications. It differentiates from React by using a partially synthetic event system that delegates only certain events, and supports lifecycle events on functional components without classes. Designed for browser and server only, not React Native.

Key features:

• React-like API with JSX, TSX via SWC or Babel plugins
• Isomorphic rendering with inferno-server for SSR
• Native animation support
• inferno-compat for drop-in React 15.x compatibility
• inferno-router for client and server routing
• Small footprint with fast virtual DOM reconciliation

Teams use Inferno when performance matters and React knowledge transfers easily. Fits high-interaction dashboards, real-time UIs, and isomorphic apps where server-side rendering and client hydration are required. Works with npm, Create Inferno App, or CDN-based setup.