Contentful is one of the oldest and most established headless CMS platforms. Launched in 2013, it pioneered the API-first CMS model that the broader industry has since adopted. It is a mature, well-documented platform with a large ecosystem of integrations, a capable editorial interface, and a content delivery infrastructure built for scale. For publishing teams evaluating headless CMS options, Contentful warrants serious consideration — with a clear-eyed understanding of where it excels and where its costs and complexity create friction.

JAMstack is an architectural approach to building websites that has reshaped how publishers think about performance, security, and hosting. The term has become somewhat elastic with use — vendors apply it broadly — but the underlying principles are specific and worth understanding clearly. What JAMstack Actually Means JAM stands for JavaScript, APIs, and Markup. The original definition describes a web architecture with three characteristics: JavaScript handles all dynamic functionality, running in the browser rather than on the server.

Sanity is a headless CMS built around a principle it calls “structured content” — the idea that content should be modeled as data first, with presentation a separate concern. For publishers whose content is genuinely complex — articles with rich metadata, multiple content types with relationships, content repurposed across channels — Sanity’s approach delivers a level of flexibility that database-backed traditional CMSes struggle to match. It is not the simplest tool in the category, but for the use cases it is designed for, it is among the most capable.

Tina CMS is an open-source, Git-backed content management system with a distinguishing feature that sets it apart from most headless options: inline visual editing. Where tools like Decap CMS present editors with a form interface that is separate from the rendered site, Tina renders the actual page alongside the editing controls — editors see changes in context as they type. This matters for publishing teams where the gap between the form and the final output causes friction.

Hugo is fast and file-based, but its editing experience is entirely command-line: you write Markdown in a text editor, commit to Git, and push to trigger a build. For solo developers this is fine. For publications with non-technical contributors, it is a significant barrier. Decap CMS (formerly Netlify CMS) solves this by adding a browser-based editorial interface to Hugo without abandoning the static site architecture. What Decap CMS Is Decap CMS is an open-source, Git-backed content management interface.

The term “headless CMS” gets used loosely enough that it has started to lose meaning in some conversations. Publishers evaluating content infrastructure deserve a clear definition, a realistic picture of the tradeoffs, and an honest sense of when the architecture is actually the right fit. What “Headless” Means A traditional CMS — WordPress, Drupal, Joomla — couples content management with content presentation. The system stores your posts in a database, applies templates to them, and renders HTML pages.

WPGraphQL is an open-source WordPress plugin that adds a fully featured GraphQL API to any WordPress installation. It transforms WordPress from a self-contained CMS into a content platform queryable by any GraphQL client — a Next.js front end, a mobile app, a Hugo build process, or any other consumer capable of making HTTP requests. The REST API built into WordPress core works, but GraphQL solves problems the REST API does not handle elegantly: over-fetching unnecessary fields, under-fetching requiring multiple round-trips, and querying relational data efficiently.