Introducing Solstice
A modern, fast, and feature-rich documentation theme built with Astro v5 and Tailwind CSS v4. This theme is the documentation for itself, explore and learn!
Thanks to our supporters
Integrated Components
In addition to steps, tabs, asides, and more, Solstice also supports custom components for you to use in your documentation.
Sidebar Customization
Easily configure the sidebar menu to match your desired docs structure.
Frontmatter Configuration
Each docs entry in Solstice supports tons of frontmatter options for easy configuration of your documentation.
What People Are Saying
Just spinning my first premium cosmic theme, Galaxy, and super impressed with the DX. The readme, the scripts and the tours :chefskiss: Super good job.
Geoffrey
Founder of Montagne Noire Web Studio
Cosmic Themes offers more than stunning templates built on a rock-solid Astro foundation—it fosters a vibrant community. With value-added perks like Discord and GitHub invites, Cosmic Themes is a no-brainer for anyone launching a new Astro project.
Connor D
Developer
It's the cleanest template standup experience ever! I've never used Astro, but looking at the demo, code, it should be fairly simple pickup on top of my existing React and NextJS experience.
David G
Web Developer
The theme is ridiculously well put together and documented. I learned a ton about Astro engineering by studying it, and I've already used some of the components for my web design clients. Plus, it shaved hours off my dev time so I could focus on writing SEO articles instead of coding something from scratch.
BowTiedFocus
Freelance Web Developer
I'm not a front-end dev, but I wanted to rebuild my personal site with Astro. If you're in the same shoes, I can't recommend enough Cosmic Themes. The entire process required exactly one CSS change.
Aniket P
Data Scientist
Cosmic Themes provides some of the best Astro themes out there. They are well designed, easy to customize and, most importantly, the team is very responsive concerning support and feature requests. Using their themes allows you to forget about the design and focus on content creation.
Damiano L
C++ Developer
Ready to build your documentation?
Get started with Solstice today and create beautiful, maintainable documentation that your users will love.