Tagbar
Vim plugin that displays tags in a window
Tagbar is a plugin for Vim and Neovim that provides a structural overview of the file you are editing by leveraging tags (via tools like ctags). It opens a sidebar window that shows the tags of the current file, organised by scope—so functions, methods, classes and other symbols are grouped logically (for example, methods under their containing class). This gives you at-a-glance insight into the layout of large source files, which is especially useful for navigating unfamiliar codebases or when working on complex modules. ...