UltiSnips is the ultimate solution for snippets in Vim and Neovim. It has many features, speed being one of them.

In this demo I am editing a python file. I first expand the #! snippet, then the class snippet. The completion menu comes from YouCompleteMe, UltiSnips also integrates with deoplete, vim-easycomplete and more. I can jump through placeholders and add text while the snippet inserts text in other places automatically: when I add Animal as a base class, __init__ gets updated to call the base class constructor. When I add arguments to the constructor, they automatically get assigned to instance variables. I then insert my personal snippet for print debugging. Note that I left insert mode, inserted another snippet and went back to add an additional argument to __init__ and the class snippet was still active and added another instance variable.

The official home of UltiSnips is at https://github.com/sirver/ultisnips. Please add pull requests and issues there.

UltiSnips was started in Jun 2009 by @SirVer. In Dec 2015, maintenance was handed over to @seletskiy who ran out of time in early 2017. Since Jun 2019, @SirVer has been maintaining UltiSnips again.

Quick Start

This assumes you are using Vundle. Adapt for your plugin manager of choice. Put this into your .vimrc.

" Track the engine.
Plugin 'SirVer/ultisnips'
" Snippets are separated from the engine. Add this if you want them:
Plugin 'honza/vim-snippets'
" Trigger configuration. You need to change this to something other than <tab> if you use one of the following:
" - https://github.com/Valloric/YouCompleteMe
" - https://github.com/nvim-lua/completion-nvim
let g:UltiSnipsExpandTrigger="<tab>"
let g:UltiSnipsJumpForwardTrigger="<c-b>"
let g:UltiSnipsJumpBackwardTrigger="<c-z>"
" If you want :UltiSnipsEdit to split your window.
let g:UltiSnipsEditSplit="vertical"

UltiSnips comes with comprehensive documentation. As there are more options and tons of features I suggest you at least skim it.

There are example uses for some power user features here:

Screencasts

From a gentle introduction to really advanced in a few minutes: The blog posts of the screencasts contain more advanced examples of the things discussed in the videos.

Also the excellent Vimcasts dedicated three episodes to UltiSnips: