Zeroindex, an Astro & Tailwind CSS documentation template

ZeroIndex — Documentation theme for Astro & Tailwind CSS

ZeroIndex is a clean, dual-mode documentation template built for technical teams that value speed, clarity, and usability. Whether you’re writing API references, onboarding guides, or full product documentation, it provides a developer-first layout that scales with your needs.

Specifications

• Built with Astro v5 + Tailwind CSS v4
• High Lighthouse scores across Performance, Accessibility, Best Practices, and SEO
• Fully responsive with light and dark mode support

Benefits

• Structured layouts for docs, changelogs, teams, and integrations
• Export code snippets to Markdown for portability
• Smart external links: open docs directly with ChatGPT or Claude
• Search powered by Fuse.js for instant in-doc discovery
• Blog and update pages included
• Reusable components for tabs, accordions, and code blocks
• SEO-optimized with Astro SEO, RSS, and Sitemap integrations
• Clean file structure with ongoing updates and style guide

Optional CMS

ZeroIndex includes a preconfigured .pages.yaml file that connects your content collections directly to PagesCMS.
All integration happens automatically when you link your repo inside the PagesCMS dashboard—no changes are made to the template code. You keep a pure Astro + Tailwind CSS setup with the option to use PagesCMS anytime.

Modern color system

ZeroIndex uses OKLCH color values, ensuring consistent rendering, theming flexibility, and a forward-looking approach to color management with Tailwind CSS v4.

Why choose ZeroIndex?

• Developer-first layout with fast navigation and responsive design
• Dual light/dark modes for comfortable reading
• Extensible with built-in tabs, accordions, and smart content blocks
• Optimized for teams that need scalable, maintainable documentation
• Powered by Astro’s static-first performance and Tailwind’s utility-first workflow