Photopea is a free online editor that supports layers, masks, smart objects, psd format, layer styles, adjustment layers, vector formats, quick selection, cloning and healing and much more. I could say it’s the free online Photoshop version. It’s the most advanced online Photo Editor I’ve seen.
Create layers with just drag and drop or paste from the clipboard. Create logos, retouch portraits or create manipulations online and export in many formats including Photoshop compatible PSD files.

The interface is available in in many languages

Give it a try, it’s free: http://photopea.com