You can use scratch online here: https://scratch.mit.edu/projects/editor/?tip_bar=home
With Scratch, you can program your own interactive stories, games, and animations — and share your creations with others in the online community.
Scratch helps young people learn to think creatively, reason systematically, and work collaboratively — essential skills for life in the 21st century.
Scratch is a project of the Lifelong Kindergarten Group at the MIT Media Lab. It is provided free of charge.
Scratch is designed especially for ages 8 to 16, but is used by people of all ages. Millions of people are creating Scratch projects in a wide variety of settings, including homes, schools, museums, libraries, and community centers.