https://markant.md/

With Markdown being the standard output for many LLMs I needed a way to view them outside the usual code editors. Markant is a no nonsense viewer, that also prepares markdown for print and PDF. It supports very large documents, like books, without any speed penalty. Along the way I realized that it would be nice with a Markdown version of ePub, where multiple markdown files along with images could be bundled. That is now a new format called Markbook - https://markbooks.org that is easy for anyone, including AI to write.