Summary Based on VOoM project Did some minor changes on Markdown related part, and make it work with Python 3. How to Use # .vimrc " VOoM plugin settings command V Voom markdown let g:voom_tree_width=62 set fdl=3 Start GVim, then run command :V References: http://www.vim.org/scripts/script.php?script_id=2657 https://github.com/vim-voom/VOoM