The plugin can show and remove trailing whitespaces.

• packer.nvim: use {'jdhao/whitespace.nvim', event = 'VimEnter'}
• vim-plug: Plug 'jdhao/whitespace.nvim'

Works out of the box.

To trim trailing whitespaces, run command :StripTrailingWhitespace.

To disable showing trailing whitespaces on certain file types, customize the variable g:trailing_whitespace_exclude_filetypes:

let g:trailing_whitespace_exclude_filetypes = ['alpha', 'git']

This plugin is released under the MIT License.