Headless CMS
Definition
A content management system that stores and delivers content via API, with no built-in frontend. Developers build custom websites that pull content from the CMS.
What is a Headless CMS?
A headless CMS separates content management from content presentation. Traditional CMS platforms like WordPress bundle content editing and website display together. A headless CMS only handles the content – the "head" (frontend display) is built separately.
Content is created in the CMS but delivered via API to websites, apps, or any other platform.
Traditional CMS vs Headless CMS
| Traditional CMS | Headless CMS |
|---|---|
| Content + frontend bundled | Content only, frontend separate |
| WordPress, Squarespace | Contentful, Sanity, Strapi |
| Fixed templates | Any frontend technology |
| One output (website) | Multi-channel (web, app, etc.) |
| Quicker to launch | More flexible |
How Headless CMS Works
- Content editors create and manage content in the CMS
- CMS stores content in a database
- CMS provides API access to content
- Developers build frontend that fetches content via API
- Frontend displays content to visitors
The content and presentation are completely independent.
Popular Headless CMS Options
Contentful
Cloud-based, enterprise-focused. Powerful but can be expensive.
Sanity
Developer-friendly with real-time collaboration. Generous free tier.
Strapi
Open-source, self-hosted. Full control over your data.
Prismic
User-friendly with visual builder features.
Storyblok
Visual editing capabilities with headless architecture.
Benefits of Headless CMS
Performance
Static sites built with headless CMS are extremely fast – no database queries at runtime.
Flexibility
Developers choose any frontend technology – React, Next.js, Vue, whatever works best.
Future-Proof
Content is decoupled from presentation. Redesign without migrating content.
Multi-Channel
Same content can power website, mobile app, digital signage, anything with an API.
When to Choose Headless
Headless CMS suits projects where:
- Performance is critical
- Custom design and functionality needed
- Content serves multiple platforms
- Development team has technical capability
For simple sites where editors need easy publishing, traditional CMS often makes more sense.