

Preact, Performance, and the Future of Lightweight Frontends with Ryan Christian -JSJ 683
4 snips Jul 23, 2025
Join Ryan Christian, core maintainer of Preact, as he explores the lightweight UI library that's gaining traction in the JavaScript world. He dives into how Preact's tiny footprint outshines React, maintaining performance without unnecessary bloat. Hear about its compatibility layer, the engineering behind its speed, and the exciting upcoming features in Preact v11. Plus, Ryan discusses trends in frontend frameworks and why Preact remains unapologetically focused on modularity and simplicity over full-stack aspirations.
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Preact's Small Size Advantage
- Preact is a JavaScript UI library designed to be highly compatible with React but significantly smaller and more performance-focused.
- The core Preact library is about 4.5 KB compared to React's approximate 60 KB, making size a key differentiator.
Why Preact Is A Library Not Framework
- Preact is considered a library rather than a framework because it does not prescribe a specific architecture or way of doing things.
- It provides flexible toolkits focused on components instead of controlling the entire application lifecycle.
Preact Core Has No React Dependency
- Preact core does not depend on React; it is a separate implementation designed for compatibility.
- React compatibility with Preact is provided by an add-on package, Preact Compat, which mimics React's API mostly but uses web standards rather than React's synthetic event system.