AstroWind

Free Astro + Tailwind CSS v4 landing page template with an SEO-friendly blog built in

Best for: Developers who want a fast, SEO-optimized landing page with a real blog, without paying for a theme or committing to a specific UI framework for interactivity.
Skip if: You need built-in auth, payments, or app functionality - AstroWind is a marketing/landing page and blog template, not a SaaS starter.

AstroWind is a free, open-source landing page template built on Astro v7 and Tailwind CSS v4, widely known as the most-starred Astro theme in recent years. It ships production-ready PageSpeed scores, dark mode and RTL support, an SEO-friendly blog with RSS, MDX and category/tag support, automatic sitemap generation, Open Graph tags, and built-in Google Analytics, while staying framework-agnostic for any interactivity you add on top.

Pros

Extremely popular and actively maintained - nearly 6,000 GitHub stars, most-starred Astro theme for several years running
Genuinely strong SEO/performance defaults: sitemap, OG tags, image optimization, production PageSpeed scores
Framework-agnostic for interactivity - pair with React, Vue, Svelte or Solid as needed

Cons

No app functionality - it's a landing page/blog template, not a SaaS or dashboard starter
Requires Node.js >= 22.12.0, a fairly recent runtime requirement
AstroWind 2.0 is in community discussion/planning, so some patterns may shift in a future rewrite