Headless CMS Platforms Compared: Sanity vs. Contentful vs. Strapi vs. Payload in 2026

TL;DR

Choosing a headless CMS now means weighing real trade-offs in cost, complexity, and team fit. Sanity offers code-first flexibility and a customizable editor but requires learning GROQ and watching usage-based costs. Contentful brings enterprise maturity and integrations at a steep price once you scale. Strapi and Payload are open-source and self-hosted, which cuts recurring fees but adds DevOps overhead.

Picking a headless CMS used to feel like a niche developer conversation. Now it’s a decision that shapes how fast your team ships, how much you pay at scale, and whether your editors will quietly resent you for the next three years. If you’re an agency or a product team evaluating platforms right now, the options are genuinely good across the board, which makes the choice harder, not easier. This guide cuts through the feature-list noise and gets into the trade-offs that actually matter.

What Is a Headless CMS and Why Agencies Choose It

A traditional CMS, think WordPress or Drupal, couples your content to a specific frontend. The CMS decides how things look. A headless CMS decouples those two concerns: it stores and delivers content through an API, and your frontend, whatever it is, consumes that content however it wants.

For agencies, that separation is the whole point. You can run a Next.js marketing site, a React Native app, and a digital signage display all from one content source. Editors work in one place. Developers aren’t locked into a theme system or a plugin ecosystem that fights them at every turn. And when a client wants to redesign the frontend in two years, you’re not also migrating their entire content library.

The trade-off is real, though. Headless adds architectural complexity. There’s no built-in routing, no out-of-the-box preview, no single-click deployment. You’re assembling a stack, not installing software. That’s fine if your team knows what it’s doing. It’s a problem if someone sold the client on headless because it sounded modern without thinking through the implementation.

Sanity: Strengths, Weaknesses, and Best-Fit Use Cases

Sanity is the one developers tend to evangelize the loudest, and for good reason. Its schema is defined entirely in code, which means your content model lives in version control alongside everything else. The real-time collaborative editing, structured content approach, and the Portable Text format for rich content are genuinely well-thought-out. The Studio, Sanity’s editor interface, is React-based and fully customizable, so you can build exactly the editing experience your client needs instead of working around a rigid UI.

Sanity’s GROQ query language is powerful once you learn it, but that’s the catch: you have to learn it. It’s not GraphQL, it’s not REST in the traditional sense, and developers coming from other ecosystems will spend real time getting comfortable. The free tier is generous for small projects, but costs can climb on higher-traffic or high-API-request workloads. Pricing is usage-based, so forecast carefully before you commit a client to it.

Best fit: content-heavy marketing sites, editorial platforms, agencies that want maximum flexibility in the editor experience, and teams comfortable owning the schema in code.

Contentful: Strengths, Weaknesses, and Best-Fit Use Cases

Contentful is the enterprise incumbent. It’s been around long enough that its integrations list is enormous, its documentation is thorough, and most mid-to-large development teams have at least one person who’s used it before. The content modeling UI is clean, the REST and GraphQL APIs are both solid, and the ecosystem of tooling around it is mature.

The weaknesses are mostly about cost and rigidity. Contentful’s pricing jumps sharply once you outgrow the free tier, and the enterprise plans are priced for enterprise budgets. The content modeling is also less flexible than Sanity’s code-first approach. You’re working in a GUI, which is approachable but limits how precisely you can express complex content relationships. For agencies managing multiple client environments, the per-space pricing model can get expensive fast.

Best fit: larger organizations with existing Contentful experience, teams that need robust access controls and audit trails, and projects where the client wants a polished out-of-the-box editing experience without heavy customization.

Strapi: Strengths, Weaknesses, and Best-Fit Use Cases

Strapi is open-source and self-hosted by default, which is its biggest differentiator. You own the infrastructure, you own the data, and you’re not paying per API call. For agencies building on behalf of clients who are cost-conscious or who have data residency requirements, that matters. The admin panel is auto-generated from your content types, setup is fast, and the plugin ecosystem covers most common needs.

The trade-offs are operational. Self-hosting means you’re responsible for uptime, backups, scaling, and security patching. Strapi Cloud exists if you want managed hosting, but at that point you’re giving up some of the cost advantage. The codebase has also gone through significant architectural changes across major versions, so upgrading can be painful. Teams that want to move fast and not think about infrastructure will find Strapi more demanding than the hosted alternatives.

Best fit: agencies with DevOps capacity, projects with strict data sovereignty requirements, budget-sensitive clients who need a capable CMS without recurring SaaS fees, and internal tools where the self-hosted model makes sense.

Payload: Strengths, Weaknesses, and Best-Fit Use Cases

Payload is the newest of the four and the one generating the most developer excitement right now. It’s TypeScript-first, code-configured, and ships with a built-in admin UI that’s genuinely good. Version 2 and beyond have leaned hard into being a full application framework, not just a CMS: you get access control, hooks, custom endpoints, and local API access all baked in. For developers building custom applications where the CMS is part of the app rather than a separate service, Payload’s architecture fits that model extremely well.

The ecosystem is younger. There are fewer third-party integrations, less community documentation, and fewer developers who’ve shipped production Payload projects at scale compared to Contentful or Sanity. It’s also self-hosted by default, which carries the same operational considerations as Strapi. Payload Cloud is available, but it’s still maturing. If you need something battle-tested with a large support community, Payload asks you to take a bit more on faith.

Best fit: custom application builds where content management is one feature among many, TypeScript-heavy teams that want the CMS schema to feel like part of the application code, and projects where the developer experience is a first-class priority.

Comparison at a Glance

Pricing tiers change. Verify current plans directly with each vendor before making a budget commitment.

Frontend Framework Compatibility

All four platforms deliver content via API, so in theory they work with any frontend. In practice, the developer experience varies.

Next.js is the most common pairing across all four, and all of them have official Next.js documentation, starter templates, or dedicated integrations. Sanity’s next-sanity toolkit and live preview integration are particularly polished. Contentful has deep Next.js support and a well-maintained content delivery SDK. Strapi and Payload both work cleanly with Next.js but require more manual wiring.

Nuxt and Astro are well-supported by Sanity and Contentful through community and official modules. Strapi and Payload work fine with both but you’ll be doing more of the integration work yourself. Remix, SvelteKit, and other frameworks are all viable since you’re ultimately just fetching from an API, but the quality of official tooling drops off outside the Next.js ecosystem.

If your team has a strong framework preference, check the official SDK and starter ecosystem for that specific pairing before you commit to a platform. The API will work either way. The developer experience is what varies.

Migration Considerations: Moving from a Traditional CMS to Headless

Migration is where projects underestimate the work. Moving from WordPress or a similar coupled CMS to headless involves more than exporting content and importing it somewhere new. You’re changing the architecture of how content is structured, delivered, and edited.

A few things to think through before you start:

• Content modeling first. Your WordPress post type structure probably doesn’t translate directly to a well-designed headless schema. Take the time to model content properly for the new system rather than mirroring the old one.
• Rich text is complicated. WordPress’s block editor or classic editor content doesn’t map cleanly to Portable Text, Contentful’s rich text format, or Payload’s Lexical editor. Plan for transformation work.
• Preview and editorial workflows. Editors used to WordPress’s live preview will need a new workflow. Build that into your timeline and your training plan.
• SEO continuity. Redirects, metadata, sitemap generation, and structured data all need to be accounted for on the new frontend. None of it is automatic.
• Media assets. Large media libraries need a migration strategy. Most headless CMS platforms have asset management, but the tooling varies and bulk imports can be painful.

The honest answer is that migrations take longer than the initial build estimate suggests. Budget accordingly, and don’t let the excitement about the new architecture rush the planning phase.

How Ghost Approaches Platform Selection and Implementation

We don’t have a house platform. We’re not going to recommend Sanity because we like Sanity or push Contentful because we have a partnership. The platform follows the project requirements, not the other way around.

What that actually looks like in practice: before we open a single integration doc, we’re asking questions about the editorial team’s technical comfort, the client’s infrastructure preferences, the expected content volume, the frontend stack, and the long-term maintenance picture. A five-person marketing team that wants to manage content without developer involvement every time they add a page has different needs than a development team building a custom application where content is one feature among many.

The selection conversation happens during discovery, not after the proposal is signed. Getting into the wrong platform late in a project is expensive and demoralizing, and it’s avoidable if you do the upstream thinking first.

Once the platform is chosen, implementation follows a defined process: schema design before any frontend work starts, editorial workflow mapped before the admin UI is configured, and a clear handoff plan so the client’s team can actually use what we build. We’ve seen too many headless projects where the developers loved the architecture and the editors quietly went back to editing Google Docs because the CMS was too complicated to use day-to-day. That’s a failure, regardless of how clean the code is.

If you’re evaluating platforms and want a second opinion before you commit, that’s exactly the kind of conversation we’re built for. The right answer depends on your situation, and we’d rather help you figure that out early than untangle a wrong choice later.

Related reading: headless CMS as the fix for WordPress sites that keep breaking, our web design and development work, and how AI agents are reshaping software development.