Cosmic JS Features Cosmic JS empowers developers and content editors to build great products together.

Tools that empower your team

Cosmic JS is a powerful content platform that makes it easy to transform your content into a beautifully simple API which can be used in any website or internet-connected application. Developers are enabled to build freely and easily, content editors can intuitively edit content and everyone saves time in the process.

Intuitive API

Cosmic JS is a hosted service that includes a web Dashboard and API. It is unopinionated about your application layer and is not tied to any programming language like a CMS that you install and maintain. Simply connect to the API for content and build your app in the language you choose. Get started by reading the documentation.

Easy Content Editing

The Cosmic JS Dashboard makes it easy to manage content, drag and drop media and build content relationships.

Flexible user roles and permissions are available so team members see only what they need to get their job done.

Easy Web App Deployment

Cosmic JS makes it easy to deploy your web app from any public Git repository. Add custom domains and SSL in just a few clicks.

Check out our Apps page to see what you can create and deploy in minutes. Cosmic JS is your API, content management and web hosting solution in one!


Localization allows you to add multiple versions of your content in different languages. Cosmic JS makes localization easy so your content can reach a global audience.


Webhooks automatically send data to the URL of your choice whenever content is edited in your Cosmic JS Bucket. For example, this can be used to trigger a static site rebuild or notify your team on Slack™ when content has been changed in your Bucket.

Imgix Image Processing

Every Cosmic JS plan comes with the power of Imgix image processing. Imgix makes image processing easy by allowing you to resize, crop, rotate, style, watermark images and more easily on-the-fly. This is especially useful when your app needs to keep image sizes dynamic for optimal rendering speed across devices on desktop, mobile and native apps. Check out the Imgix website to learn more.

Secure Data Storage

Content stored in Cosmic JS and delivered by the API is protected with 256-bit SSL encryption. You can also restrict access to your content by adding optional access tokens located in the Settings tab in your Cosmic JS Bucket.

Helpful Resources

Cosmic JS provides excellent resources to help you build your applications. Whatever your programming language preference, you can connect your content to your app through the JavaScript Client (Node.js or in the browser), PHP Client or directly through the REST API.

Team Friendly

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