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React Islands in Astro Without the Noise

Keep interactivity small and deliberate with islands.

2025-07-05 reactastro

Astro’s islands approach lets you keep most pages static while selectively hydrating the parts that need motion or state.

Island checklist

  • Hydrate only what users can interact with.
  • Keep props small and serializable.
  • Prefer server-rendered HTML when possible.

Practical win

You get the best of both worlds: performance and personality.