Astro vs Next.js: A Static Blog Framework Guide

Context

When choosing a blog framework, many reach for Next.js by default. But is it really the best fit? This article compares Astro and Next.js across key dimensions.

Performance Comparison

Metric	Astro	Next.js (static export)
Default JS Bundle	0 KB	~45 KB (React)
TTI	Instant	Requires hydration
Lighthouse	100/100	85–95/100

Astro ships zero JavaScript by default. Your blog post pages are pure HTML + CSS. Only explicitly marked client:load components load interactive JS.

Next.js includes the React runtime (~45 KB gzipped) on every page, even if the page needs no interactivity at all.

// Astro — load JS only when needed
<Comments client:visible />
// Everything else is pure HTML

Developer Experience

Astro:

• .astro files feel like HTML, minimal learning curve
• Built-in Content Collections with TypeScript safety
• Markdown/MDX as first-class citizens

Next.js:

• Massive ecosystem, plugin-rich
• Static export has many limitations (no ISR, no Middleware)
• Frequent breaking changes between majors

Conclusion

For content sites (blogs, docs, marketing), Astro is the better choice. Next.js shines for applications needing heavy client-side state (dashboards, SaaS).

BePhil chose Astro. This article proves it.