We are about to switch to a new forum software. Until then we have removed the registration on this forum.
The above website is a very lightweight online editor for p5js sketches that I recently created because I needed a tool to teach workshops for 9-16 years old students. The basic idea is that anyone can generate a new workspace (using namespaces concept) to write, view and save their p5js sketches - no registration and no fees.
Hope this might be of use to other p5js users. Suggestions to improve the website are welcomed :)