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Empower your team to build content-powered apps faster together.

What is Cosmic Headless CMS?

Headless CMS is an internet-based implementation of headless software, which enables independence of the data (content) layer from any specific presentation architecture. This modularity in data design and delivery allows for flexibility and portability, future-proofing content against obsolescence of any presentation layer.

It also allows content to be simultaneously integrated with different sources, making content accessible across different website architectures, internet services, and mobile devices. Cosmic Headless CMS additionally offers a robust programmatic and graphical user interface to build and manage headless content.

  title: "A Wonderful Blog Post About Earth",
  slug: "a-wonderful-blog-post-about-earth",
  content: "This is a great day for our team...",
  metadata: {
    hero: "",
    publish_date: "Apr 18",
    author: {
      full_name: "John Doe",
      link: "",
      avatar: ""

Cosmic Headless CMS Features

The Cosmic Headless CMS comes with all of the features your team needs to build content-powered apps faster together.

Beautiful, Easy-to-use Web Dashboard

The Cosmic Dashboard gives your content creators an easy and feature-rich experience to create content. Whether creating blog content or managing product information, the web dashboard is simple and intutive.

Powerful content management features like Bulk Edits, Search and Replace, and Merge for workflows come included.

Intuitive Headless CMS Content Modeling

Cosmic uses a simple, yet powerful, approach to headless CMS content modeling.
Buckets are highly flexible ways to store data and files for any project. A Bucket can power content for an entire website, a part of a website, native apps, IOT apps, and more.
All Bucket data can be imported / exported at anytime to create syncing between environments (development, staging, production). You can have as many Buckets as you want.
Objects are your building blocks for your Bucket. They are grouped into Object Types such as Pages, Blog Posts, Authors, etc.
The Object dashboard experience maps intuitively to the Object API JSON response.
Metafields give you the ability to extend Object content models. Extend data with select options, media, markdown, nested data, repeating fields, and connect Objects to create reusable components with ease.
Metafield options include:
✅ Plain text
✅ Select options
✅ HTML and rich text
✅ Markdown
✅ Object connections and relationships
✅ Repeating groups of content
✅ Nested fields
✅ JSON data
✅ and more!

Powerful APIs

Cosmic provides both a REST and GraphQL API to provide Cosmic-powered data and files to any website or application. Open-source solutions are available to help you get up and running faster. Get started by reading the documentation.

Powerful Rich Text and Media

Adding rich text and media is made simple with the Cosmic HTML content editor. Format text, link to videos from YouTube or Vimeo, upload files and images, embed code from 3rd party services like GitHub, Typeform and more.

Revision History

Mistakes happen. With revision history, you no longer have to worry about editing mistakes. Go back in time and revert your content to a prior version with ease.


Use Cosmic Webhooks to automate workflows and communicate with third-party apps. Webhooks automatically send data to the URL of your choice whenever content is edited in your Cosmic Bucket. This can be used to set up notification workflows in Slack, automatically redeploy static websites to Netlify, as well as a variety of other automation use cases.


Reach your global audience by publishing multiple versions of your content in different languages. Select from over 400 different locales to serve your content to the world. Retrieving localized content from your Bucket is as easy as adding a locale parameter to your API request.

Scheduled Publishing

Scheduled publishing is made easy by setting the date and time when you want your draft content set to publish at a later date and time. You can also set published content to unpublish at a later date and time.

Easy Media Management

Along with data and content, Cosmic is your powerful media management solution. Our image API and CDN is the perfect solution for media upload, management, and delivery.

Files uploaded to your Cosmic media area are made available to your Objects via the HTML content editor and File Metafield. Organize media into folders and add metadata for additional organization.

Roles and Permissions

Cosmic allows you to add your team members for seamless collaboration. Easily set their role as an Admin, Developer, Editor or Collaborator allowing each team member to only see what they need to get their job done.

Additional levels of permissions are available to allow management of Bucket Settings and Users for more flexible role delegation.

Content Preview

Cosmic makes it easy to save draft content and preview your changes prior to publishing.

Use the Object Type preview feature (located in Object Type Settings) to easily view draft content in your application prior to publishing.

Single Sign-On

Single Sign-On is a convenient way for large organizations to eliminate large team onboarding hassles and allow for greater control over user access. Cosmic supports Single Sign-On using popular services such as OneLogin, Okta as well as any other Identity Provider that uses the SAML 2.0 protocol.

Data Import / Export

You own your data. Importing and exporting your data is made easy, simply download your Bucket file (in JSON format) and import it into a new Bucket. This makes syncing data between Buckets fast and easy. Copying and pasting Object Schemas (located in advanced settings on the Edit Object page) is also built in for easy duplication across Object Types or Buckets.

Team Workflows

Team user roles are provided to align with your workflow and user access control needs. Restrict content access and automate workflows with webhooks to communicate with your team when content has been changed and ready for editor review.


Extend your content editing experience with Extensions. Use them to create custom views in your dashboard and interact with your favorite third-party APIs and services. Check out available Extensions built by the Cosmic team and Community. You can also build your own to customize your dashboard experience.

Activity Logs

Activity logs are available to track team member actions in your projects. See when content was edited, by whom, and view past versions of the content in one high-level view.

Automatic Backups

Your team can work with peace-of-mind knowing that your entire Bucket is backed up every single day. Save a manual snapshot backup intsantly in one click at any time. Download the full backup, import it into another Bucket, or restore the Bucket to the snapshot in one click.

Merge Requests

Merge Requests enables you to do Git-like workflows for content. Move beyond the rigid draft / publish content process into a more fluid, collaborative, and comprehensive workflow.

Perform bulk edits in batches, see update previews, involve team members for review, approvals, and more. Use instant merge rollbacks to revert back to a prior version at any time (automatic backups must be enabled on the target Bucket).

Headless CMS Compatibility

Cosmic headless CMS provides compatibility and support for common web and internet technologies.

Industry-Leading Professionals Choose Cosmic

When you build applications with Cosmic, you're in good company. Everyone from Developers to Directors of Marketing to Fortune 500 CTO's has had great things to say about Cosmic.

"It was literally 10 to 15 minutes from taking the SDK, to getting the data I needed, to consuming it. We cut our server response time down from 300-400 ms to about 50 ms. Instead of needing to query the Shopify API, now we only need to query Cosmic."
John Leider, Vuetify
"Really like Cosmic. Build your content in a CMS and get a REST or GraphQL API immediately! Slick tool to make dev quicker! Even has Gatsby Preview so you can check out changes before publishing."
Chris Sevilleja,
"The headless CMS we chose had to tick a lot of boxes. At the end of the day, though, it needed to be easy for our external writers to use. We recorded a quick screencast video internally showing how to set up a piece of content, sent that out to our team, and I haven’t had a question from any of our writers since."
Katie Prowd, Co-Founder of Hypometer Technologies
"Cosmic allowed us to easily integrate a secure and fast back-end API into our React app. Cosmic fit our needs with its simple web-based dashboard so that members of our marketing team can create, edit, and delete new content on the fly. Our team has been enjoying the ease of use with the new system."
Owen Liversidge, Lead Developer, Tripwire Interactive
"Leveraging the Cosmic GraphQL API allows for easy updates to our news and blog, while keeping payloads small and fast. Integration with Cosmic could not be easier thanks to their great support. We look forward to developing more features on the platform."
Dustin Brink, Derive Systems
Want to chat with some of these people? Join us in the Cosmic Community, one of the fastest-growing communities for developers of all skill sets.

Why choose the Cosmic Headless CMS?

No CMS Maintenance
We maintain everything for you so you can focus on what matters most: building great products and user experiences.
Your content is now infinitely scalable. Powered by best-in-class Serverless technology, your content can scale to billions of users.
You no longer have to worry about CMS security. Your data is encrypted at rest and in transit with our 256-bit SSL encryption.
Cost Savings
Save time and money on developer resource spending. Along with our best-in-class product, you also get our best-in-class support team.

Get started with Cosmic

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