That said, my kid, above all else, had the most fun with paintz.app (website), just creating pictures. He's moved onto brush.ninja now (at 7) and is doing simple gif animations. Source: over 1 year ago

I wasn't sure if that was allowed. The site is brush.ninja, I shall update the original post to show this too. Source: about 2 years ago

Https://brush.ninja/ is fast/nice if you just want to do quick stick figure type animated gifs. Start by drawing something simple in the current frame, then down at the bottom, use the "duplicate" to make the next frame and add some changes. - Source: Hacker News / about 2 years ago

I can suggest brush.ninja for online (2D) animations or OpenToonz/FlipaClip for downloadable software animations, along with Blender for 3D animations (all of these are free to download and use). Source: over 2 years ago

A better choice might be something like Zenfolio (there are lots of these types of services). Some of these services do that processing for you, and also give you a marketplace for people to buy prints / photo books / etc. Source: about 1 year ago

I think Zenfolio https://zenfolio.com is great! You can create a website of your own, as well as have password protected client galleries. It also integrates seamlessly with MPIX and Bay Photo which both have great products! I build websites and it’s so not worth trying to do your own site when you look at the features and the prices and integration of the labs you get with Zenfolio. Source: almost 2 years ago