When comparing Photopea vs RawTherapee, the Slant community recommends Photopea for most people. In the question“What is the best photo editing software?” Photopea is ranked 7th while RawTherapee is ranked 11th. The most important reason people chose Photopea is:
Photopea allows dragging & dropping images in to the browser window to upload them and add to the scene.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Drag and drop support
Photopea allows dragging & dropping images in to the browser window to upload them and add to the scene.
Pro Fast to load
Pro Very reactive on feedbacks
Pro Can save as PSD
This means you can open these files in Photoshop, so if you don't have Photoshop on one device, you can still export your Photopea project and continue editing on Photoshop on another device
Pro Photoshop Like Interface
It has a Photoshop-like interface with most of its features for basic editing.
Pro Has many features
Pro Uses Photoshop standard shortcuts
Pro Requires no browser plugin
As it is an HTML5 application, running it requires no additional plugins on modern browsers.
Pro Excellent docs
RawTherapee community maintains a wiki called RawPedia that covers everything about the software from top to bottom.
Cons
Con Hard to get used to it at first
However, you'll get used to it later!
Con Has only basic filters and operations
Con Mac version is unstable
Con History is lost when opening a new image or closing the app
History resets as soon as you open a new image in the image editor. A fix for it is planned in a future update.