I thought soon we will have real cloud image processing apps. But now, 5 years later, there is only pics.io, which I didn’t even know until now. I discovered it while I was searching for links for this blog post.
The result is available at the RawDevJS organization on GitHub, which contains 18 repositories today.
One of them is rawdevjs-browser fetches and renders DNG images into Blob URLs, which can be display using an
<div class="rawdevjs" data-src="http://static.bergnet.org/IMG_8801.dng"></div>
Another one is rawdevjs-cli, a command line tool to convert DNG images to PNG images.
If you are interested in participating or in adopting that project, please contact me!