Astro Starlight vs Readme: Features, Pricing and User Reviews 2026

Astro Starlight

Build Beautiful Documentation Fast

Developer Documentation Platforms Static Site Generators

Readme

Interactive API Documentation & Developer Hubs

API Documentation Developer Portal Builders

Astro Starlight

Build Beautiful Documentation Fast

Developer Documentation Platforms Static Site Generators

Readme

Interactive API Documentation & Developer Hubs

API Documentation Developer Portal Builders

Astro Starlight

Astro Starlight is a documentation theme built on the Astro web framework. It provides a ready-made structure for creating documentation websites that are fast, accessible, and easy to maintain. Unlike other documentation tools, Starlight ships minimal JavaScript to the browser, resulting in faster load times and better performance.

The tool supports writing content in Markdown, MDX, and Markdoc formats, giving you flexibility in how you create your documentation. It includes automatic navigation generation, built-in search powered by Pagefind, and responsive design that works on all devices. Starlight also supports multiple languages out of the box, making it suitable for global documentation projects. The theme is highly customizable through configuration files, allowing you to match your brand while keeping the simplicity of setup.

Readme

Readme is a platform that lets you create and publish interactive developer documentation for your APIs. Unlike traditional documentation tools, Readme automatically generates API references from your OpenAPI or Swagger files and keeps everything in sync with your code.

The platform includes a built-in editor where you can write guides, add code examples, and explain how your API works. Developers using your API can test endpoints directly from the documentation with the Try It feature, making it easier to understand how everything works.

Readme also provides analytics so you can see which parts of your documentation get the most views and where developers might be getting stuck, helping you improve your API experience over time.

Features of Astro Starlight and Readme

Astro Starlight

Fast static site generation with minimal JavaScript
Built-in search with Pagefind
Full internationalization support
Automatic navigation generation
Dark and light themes included
Markdown, MDX, and Markdoc support
Multiple framework integration (React, Vue, Svelte)
Accessibility-focused design
Mobile responsive layout
Customizable themes and colors
Edit page links
Social media integration
SEO optimized

Readme

Interactive API reference with Try It functionality
OpenAPI and Swagger file sync
Markdown editor for guides and tutorials
Multiple API version management
Custom domains and white-label branding
Real-time analytics and usage tracking
Team collaboration with reviews and branching
Changelog and discussion forums
SSO and advanced security
AI-powered documentation tools
Mobile responsive design

Use Cases of Astro Starlight and Readme

Astro Starlight

Documentation Content Management Static Documentation Site Creation Technical Documentation Generation

Readme

Documentation Content Management Developer Portal Building API Documentation Creation API Endpoint Testing Documentation Usage Analysis

Pricing of Astro Starlight and Readme

Astro Starlight

Astro Starlight is completely free and open source. There are no pricing tiers, subscriptions, or hidden costs. You can use Starlight for personal projects, commercial websites, or large enterprise documentation without paying anything.

The project is released under the MIT license, which means you have full freedom to use, modify, and distribute it. You can customize every aspect of Starlight to match your needs. Hosting costs depend on where you choose to deploy your documentation. Many hosting services like Netlify, Vercel, and GitHub Pages offer free tiers that work perfectly with Starlight sites.

Since Starlight is open source, you also benefit from community contributions and regular updates from the Astro team. Support is available through the active Astro Discord community and GitHub discussions.

Readme

Readme offers flexible pricing to match different team sizes and needs. The platform provides four main plans plus an optional AI booster.

The Free plan costs nothing and includes unlimited API versions, interactive API reference, markdown editor, and basic AI features like AI Dropdown and LLMs.txt support.

The Startup plan at $99 per month adds important features like custom domains, changelogs, discussion forums, MDX components, and the Agent Owlbert AI assistant with AI Doc Linting.

The Business plan at $399 per month removes Readme branding and adds advanced features including CSS/HTML customization, reusable content, metrics export, and branching for team workflows.

The Enterprise plan offers custom pricing with everything in Business plus dedicated design help, shared component libraries, custom JavaScript, audit logs, SSO, and full Docs Audit capabilities with Ask AI API access.