Editor plugins
Visual Studio Code​
Front Matter : Once you go for a static site, you need to think about how you are going to manage your articles. Front matter is a tool that helps you maintain the metadata/front matter of your articles like: creation date, modified date, slug, tile, SEO check, and more.
Hugo Helper : Hugo Helper is a plugin for Visual Studio Code that has some useful commands for Hugo. The source code can be found here.
Hugo Language and Syntax Support : Hugo Language and Syntax Support is a Visual Studio Code plugin for Hugo syntax highlighting and snippets. The source code can be found here.
Hugo Themer : Hugo Themer is an extension to help you while developing themes. It allows you to easily navigate through your theme files.
Hugofy : Hugofy is a plugin for Visual Studio Code to "make life easier" when developing with Hugo. The source code can be found here.
Prettier Plugin for Go Templates : Format Hugo templates using this Prettier plugin. See instructions.
Syntax Highlighting for Hugo Shortcodes : This extension adds some syntax highlighting for Shortcodes, making visual identification of individual pieces easier.
Emacs​
emacs-easy-hugo : Emacs major mode for managing hugo blogs. Note that Hugo also supports Org-mode.
ox-hugo.el
: Native Org-mode exporter that exports to Blackfriday Markdown with Hugo front-matter. ox-hugo supports two common Org blogging flows --- exporting multiple Org subtrees in a single file to multiple Hugo posts, and exporting a single Org file to a single Hugo post. It also leverages the Org tag and property inheritance features. See Why ox-hugo? for more.
Sublime Text​
Hugofy : Hugofy is a plugin for Sublime Text 3 to make life easier to use Hugo static site generator.
Hugo Snippets : Hugo Snippets is a useful plugin for adding automatic snippets to Sublime Text 3.
Vim​
Vim Hugo Helper : A small Vim plugin that facilitates authoring pages and blog posts with Hugo.
vim-hugo : A Vim plugin with syntax highlighting for templates and a few other features.