Pencil Code

What Pencil Code is

Pencil Code is a free web programming site for creating art, music, games, stories, and projects about math, webpages, simulations, and algorithms. Its editor supports block-based and text-based programming, with a switch between the two. Learners can use CoffeeScript, JavaScript, CSS, and HTML, while the preloaded Pencil Code library provides turtle-graphics functions. Programs are open for others to view and copy, and posted content is public. Users can create and run programs without registering, but an account is required to save projects on the service. Pencil Code describes itself as open source and publishes its license terms. It is an educational service intended for users of all ages, with printable classroom materials and a curriculum for middle- and high-school students. The site warns that posted data is public and not secured from loss, and its terms prohibit posting private or personally identifiable information. Those terms also prohibit using the service on behalf of or as part of a business. The Pencil Code plan is free.