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Developers at successful companies choose Cosmic JS

For Developers


Cosmic JS offers an intuitive API that can deliver content to any website or application. This gives you the freedom to build your application using any programming language and allows for easier scaling within your development team.

Developer tools and features are offered as valuable time-savers during the development process. It's easier than ever to manage your project from the first line of code, to content population, to launch day.

For Content Editors


Cosmic JS offers a streamlined editing experience that gives you everything you need to publish content quickly and easily. Since there is no CMS installation, you can easily build content in any phase of development and avoid unnecessary process bottlenecks.

Add rich text, drag and drop media and upload video. Set roles and permissions for easy content collaboration within your team. Content management is faster, easier and keeps the project on track.

What Can You Create?


Backup your Medium posts to Cosmic JS for easy storage.  This app lets you backup any Medium publication manually or automatically on a cron job every hour.

Medium Backup

This slick photography website is built using Node.js on the server and Bootstrap on the frontend.  It is fully responsive down to mobile, includes a contact form and a gallery section powered by Photoswipe.

Photography Website

Now running on React v15.0! The React Universal Blog is both a single-page app and a server-rendered website which is fast and can be indexed by search engines.

React Universal

This Angular JS single page wedding website makes it easy to edit content, update photos and plan for the big day.

Wedding Site

This is a very cool blog app built using Polymer.  Contributed by M. Andrew Darts.

Polymer Blog Example

This is an awesome Node.js app that uses the Express framework.   It is adapted from a theme at html5up.net.

Future Imperfect

Product Tour


People Have Said...

Cosmic JS removes many headaches by just working, right out the box. Plus, it is blazingly fast!

Application Developer, Digital Agency, London, UK

A more intuitive API than any other API-based CMS out there.

Software Engineer, Creative and Interactive Agency, Sydney, AUS

You can build a pretty complex CMS and API in about 10 minutes with Cosmic JS.

Director of Digital & Emerging Media, The Smithsonian Design Museum, New York, NY

Next time I need to build a CMS I'll definitely replace WordPress with Cosmic JS and slap a React front end on it.

Developer, National Magazine, Sydney, AUS

Cosmic JS makes me continuously say, where have you been all my life!

Software Engineer, Interactive Agency, Pennsylvania, USA

Cosmic JS totally rocks!

iOS developer, Interactive Agency, New York, NY