A headless CMS purchase affects two groups at once: developers building the delivery layer and editors maintaining content after launch. An elegant API does little for a team whose editors cannot preview a change. A friendly page builder also falls short when its content model cannot support the next application.
Sanity, Contentful, Strapi, Directus, and Storyblok approach that boundary differently. Sanity emphasizes a customizable editing environment, Contentful packages structured content into managed spaces, Strapi offers an extensible application, Directus works around a database, and Storyblok emphasizes visual composition. This comparison uses official product and pricing materials checked on October 12, 2026; recommendations are editorial assessments, not hands-on performance results.
What you are actually buying
Headless separates content management from the frontend that presents it. Your team still owns rendering, preview integration, accessibility, caching, and publishing behavior. A managed content backend does not automatically host your website. For a simpler campaign publishing decision, our landing page builder comparison covers a different class of tools.
Model one realistic content journey before choosing: an editor updates a reusable product description, previews it in two contexts, obtains approval, and publishes the right language versions. That exercise exposes more useful differences than comparing the length of a vendor’s feature list.
The quick difference
| Product | Best fit | Main strength | Boundary to examine |
|---|---|---|---|
| Sanity | Teams tailoring editorial workflows | Customizable Studio and structured content | Seats, datasets, permissions, and usage |
| Contentful | Managed multi-channel content operations | Content modeling and delivery APIs | Platform plan and separate space entitlements |
| Strapi | Developers owning an extensible CMS | Application customization and hosting choice | CMS license differs from Cloud hosting |
| Directus | Database-centered content and data apps | APIs, permissions, and Data Studio | Current license, collections, seats, and grant eligibility |
| Storyblok | Editors composing component-based pages | Visual editing connected to frontend components | Per-space quotas and workflow tiers |
Sanity
Sanity pairs its hosted Content Lake with Sanity Studio, an open-source React editing application that developers can customize. Its product materials describe structured content, real-time collaboration, and visual editing. This is useful when your editorial model includes relationships and reusable material that should survive a website redesign.
Strengths: Studio customization lets a development team adapt the authoring experience to its own content model. The value is not simply adding fields; it is making the editor’s task understandable. A specialized validation or preview flow can reduce ambiguity about what a change will affect.
Limitations: that flexibility creates implementation and maintenance work. The Free plan currently includes up to 20 seats and public-only datasets; Growth adds private datasets and more permission roles, with seat charges and usage overages. Enterprise arrangements address more advanced controls. Count API traffic, bandwidth, and dataset requirements separately.
Best fit: teams with developers available to own the editorial experience. In a pilot, ask an editor to repair a validation failure and understand where a referenced item appears. Also check who will update Studio extensions when dependencies change.
Contentful
Contentful provides a managed content platform with content models, references, delivery and preview APIs, and developer integrations. Spaces define project areas, while environments support development and publishing arrangements. Its approach fits teams that want a hosted backend without operating the CMS application themselves.
Strengths: structured entries encourage reuse across channels. Separating a piece of content from a specific page can help when an application, website, and other interface need the same underlying information. The advantage depends on disciplined modeling rather than merely moving existing pages into entry fields.
Limitations: pricing has two layers. A Platform subscription includes a Starter Space, while larger space licenses and other products have separate entitlements. Free currently has hard API and bandwidth caps. Lite offers paid usage overages; do not assume upgrading the platform automatically supplies every larger space allowance or enterprise workflow.
Best fit: organizations comfortable with a managed service and explicit content governance. Ask for a configuration-specific cost breakdown covering spaces, locales, environments, records, and traffic. Verify editor permissions in the plan you would buy, rather than relying on an enterprise demonstration.
Strapi
Strapi is an extensible CMS application with REST and GraphQL APIs. The Community CMS edition is MIT licensed and supports self-hosting. Paid CMS plans add editorial and organizational capabilities. Strapi Cloud is a separate hosting offering, so the software feature decision and infrastructure decision need their own lines in the budget.
Strengths: application ownership suits teams that need custom business behavior around content. Developers can adapt the backend and choose how it is deployed. That control can matter when content must work alongside an existing application rather than remain entirely inside a vendor-managed service.
Limitations: self-hosting makes upgrades, backups, database operations, and availability your responsibility. Growth CMS adds capabilities such as content history and releases; review workflows and audit logs sit in Enterprise. Cloud plans have their own request, storage, bandwidth, and environment limits, and the current Starter hosting tier sleeps when idle.
Best fit: teams prepared to maintain an application or explicitly purchase managed hosting. Demonstrate a custom field, a schema change, and a deployment between environments. Budget the CMS license, hosting plan, additional seats, and operational support together.
Directus
Directus connects a database and asset storage to REST and GraphQL APIs, access controls, file management, Flows, and Data Studio. Its database-centered model makes it relevant when the same records support both an application and editorial operations. It offers managed Cloud or self-hosted deployment.
Strengths: the model starts from your data rather than requiring every workflow to resemble a page. Data Studio provides a shared interface, while permissions control which records and operations a role can use. This can suit an internal catalog or structured content service with relationships that already matter to the application.
Limitations: current documentation describes the Monospace Sustainable Core License. The Core tier has seat, collection, and Flow limits; higher capabilities require a paid license or qualifying Open Innovation Grant. Cloud hosting is an optional charge. Older descriptions of unrestricted free self-hosting should not replace a current eligibility review.
Best fit: database-oriented teams that can evaluate both schema ownership and licensing. Check collection counting, access policy requirements, and the grant’s revenue and employee conditions. Self-hosting still needs named owners for upgrades and recovery.
Storyblok
Storyblok combines a headless content service with a visual editor built around components. Developers connect the frontend implementation to content blocks so editors can compose and preview pages. That emphasis is useful when editors need to understand placement and layout without handing every page revision to engineering.
Strengths: reusable blocks can give editors meaningful control while preserving a designed component vocabulary. The result is most useful when blocks reflect real publishing needs: a campaign hero, a feature section, or a reusable reference. Good frontend integration makes preview relevant to the eventual page.
Limitations: visual editing does not remove development work. Subscriptions are per space, with seat, API request, component, and retention allowances. Starter is a limited free tier; advanced roles, workflows, release management, and other enterprise capabilities belong to higher packages. Trial access should not be mistaken for permanent plan access.
Best fit: teams producing component-based websites with regular editorial changes. Let editors assemble an unfamiliar page, then inspect responsive output and invalid combinations. Confirm which approval and localization controls the selected plan includes.
How to choose a headless CMS
Start with the content model. Use several genuinely different items: an article, a reusable person record, a product description, and a localized campaign. Model relationships and deletion behavior. If removing a record creates broken references, the evaluation should show how an editor discovers and resolves them.
Make preview part of the acceptance criteria. A draft should appear in the correct frontend context without becoming publicly accessible. Include a scheduled change and an unpublished translation. Measure the implementation work required to make this experience reliable; do not treat a polished vendor sample as your finished integration.
Price the architecture you will operate. Separate editor seats, spaces or datasets, environments, content records, delivery requests, asset traffic, and paid workflow features. Record the currency, taxes, billing period, annual commitment, and overage behavior in the quote. Where the page shows only a dollar symbol or a dynamic calculator, confirm the invoiced currency instead of assuming it.
Assign an operating owner. A hosted service still needs integration maintenance and incident response. A self-hosted service additionally needs database recovery, patching, and monitoring. Decide who handles each failure before the first production launch.
Keep an exit path. Export a small connected content set, including assets and relationships. Check whether the resulting files can recreate the meaning outside the current platform. A downloadable entry list alone may not preserve workflows, references, or rich-text structure.
Evaluation checklist
- Can an editor create, preview, approve, and publish one complete journey?
- Do production and staging have appropriate permissions and isolation?
- Are required locales, seats, and usage allowances priced explicitly?
- Can you export content, assets, and meaningful relationships?
- Who owns upgrades, integrations, recovery, and ongoing model changes?
Conclusion
Shortlist Sanity for a tailored editing experience, Contentful for managed structured content operations, and Strapi when application control matters. Directus merits attention for database-centered workflows, while Storyblok suits visual component composition. Choose the platform whose editorial journey and operating responsibilities your team can support, then confirm the exact plan against that journey.
References
Official sources checked October 12, 2026. Pricing and entitlements can change.