Sveltia CMS

Sveltia CMS is a leading Git-based headless CMS for static sites. It’s open source, free, and a complete modern rewrite of Netlify CMS, now known as Decap CMS, which has been neglected for years.

Designed for content editors and developers alike, Sveltia CMS delivers a great UX/DX, powerful features, and first-class internationalization (i18n) support — all in a small, maintenance-free, single-page web application served from a CDN. Its generic-purpose approach makes it suitable for a wide range of projects, from personal blogs and portfolios to marketing sites and knowledge bases.

As the successor to Netlify/Decap CMS, we continue to deal with issues reported in their repository, of which 390 have now been solved in Sveltia CMS (860 including duplicates). It incorporates numerous enhancements while maintaining high compatibility with existing installations. A growing number of projects, including U.S. government agencies, are switching from Netlify/Decap CMS to Sveltia CMS to enjoy its significantly improved performance, security, reliability, and experience.

Sveltia CMS is framework-agnostic. It’s an excellent option for those moving away from a traditional CMS and looking for a lightweight headless CMS that works well with Astro, Eleventy, or any other static site generator (SSG). It also works well with vanilla JavaScript and custom tooling.

Explore 760 real-world examples in our showcase, including 200 sites migrated from Netlify/Decap CMS and 110 sites from WordPress, or visit the documentation to get started. You can also try out the CMS on a demo site without any installation.

Documentation

We provide comprehensive documentation to help you get started and make the most of Sveltia CMS:

• Introduction: Product highlights, use cases, project goals
• Getting Started: Step-by-step setup instructions
• Migration Guides: Instructions for migrating from other CMSs
• Working with AI: Official Agent Skill and llms.txt
• Roadmap: Upcoming features and improvements

Showcase

Our industry-leading showcase is updated daily with new real-world examples of Sveltia CMS users, including:

• Sites migrated from Decap CMS: Most popular
• Sites migrated from WordPress
• Sites built with Astro
• Sites built with Eleventy
• Sites built with vanilla JavaScript: Trending
• Sites using i18n support: Multilingual sites made easy

Community

Stay connected and get support through our community channels:

• Bluesky: Follow us for news and updates
• Discord: Join the community and chat with us
• GitHub Discussions: Ask questions and share ideas
• Contribute: Learn how to get involved

Announcements

Highlights from our latest announcements:

• Sveltia CMS is now feature complete — It’s time to switch from Decap CMS!
• Sveltia CMS Community Insights, June 2026
• Sveltia CMS Now Accepts Donations – Support Open Source Development!