When comparing DeviantArt muro vs Sumo Paint, the Slant community recommends Sumo Paint for most people. In the question“What is the best online image/picture/photo editor?” Sumo Paint is ranked 5th while DeviantArt muro is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pro Has some neat adjustment layers
Muro has a collection of preset adjustment layers that can be used to change the look of the image. They can be applied on a per layer basis or on the image as a whole.
Pro Requires no browser plugin
As it is an HTML5 application, running it requires no additional plugins on modern browsers.
Pro Has most of standard Photoshop filters
Pro Has a Chrome App
Chrome app can be downloaded here.
Pro Has advanced layers support
Pro Can save to cloud, locally, or directly copy to clipboard
Con Limited filters
There is no way to adjust how filters perform.
Con Requires Flash
Con Slow to open
Sumo Paint is pretty slow to open when compared to other online photo editors.
Con Lacks drag and drop support
Doesn't yet support dragging & droping images in to the browser window.