DatoCMS - you can build and manage any kind of content
Big companies and agencies trust DatoCMS to power content in websites and apps of any size. Content Delivery API is written in GraphQL.
DatoCMS offers a great number of fields with different appearance configurations and third-party plugins that aim to provide an amazing experience for editors.
With DatoCMS you can achieve structured, rich-content editing using a specific type of field called Modular Content.
DatoCMS offers full localization support. All your content types and assets can be localizable, including rich text, images, geopoints and especially your URLs.
Prismic - Headless API CMS for both developers and marketers
A Visual Custom Type Builder allows to build a custom data structures and model relationships between custom types.
It allows to define multiple views of an image to handle responsive images. Just upload an image and prismic.io will automatically crop, resize and define the corresponding responsive image views.
Manage Publication Projects and Schedule them with Releases. Localize your content and succeed globally using integrated translation workflow.
Handling sensitive content? Assign people to collaborate in a given release, and change the visibility of that release to private.
NetlifyCMS - content management for your Git workflow
Netlify CMS is built as an open source single-page React app. You can create custom-styled previews, UI widgets, and editor plugins or add backends to support different Git platform APIs.
Content is stored in your Git repository alongside your code for easier versioning, multi-channel publishing, and the option to handle content updates directly in Git.