NPR's Joy Generator
Since 2021, NPR has a web app dedicated to evidence-based promotion of joy and happiness. It includes relaxing painting, shooting sounds, poetry...
Neal Fun
Hilarious, brainy, sometimes thought-provoking activities
I adore the data Viz activities and there are some epic educational resources too like how web marketers make you fall into their calls for action ($) .
Okay this site is not entity as-free but you will hardly notice the ads, I promise.
Earth FM
This is a repository of 1000+ soundscapes from around the world, which is pretty cool, but the underlying mission is to inspire people to care about nature and preserve the natural places where the sounds come from.
Astronaut.io
Observe earthlings in short, unedited, unpretentious videos uploaded to YouTube during the last week.
They have almost no views! you might be the first viewer :o
New Material Want
I am speechless with this 3D objects generator. I got lucky with this gorgeous ouvre
I like guessing what objects are forming the whole generated 'thing' before it disappears.
Colour interaction playground
Here you can generate patterns and simple but beautiful compositions, play with the settings to customize witout losing the elegance.
:) , cute cute cute!