Gollum

Original author(s)	Tom Preston-Werner, Rick Olson, Dawa Ometto, Bart Kamphorst
Developer(s)	GitHub and community
Initial release	February 16, 2009; 14 years ago (2009-02-16)[citation needed]
Stable release	5.3.0[1]  / 25 May 2022; 9 months ago (25 May 2022)
Repository	github.com/gollum/gollum
Written in	Ruby
Operating system	Unix-like, macOS, Windows
Size	~25 MB
Type	wiki software
License	MIT License
Website	github.com/gollum/gollum

Gollum is a wiki software using git as the back end storage mechanism, and written mostly in Ruby. It started life as the wiki system used by the GitHub web hosting system.^[2][3] Although the open source Gollum project and the software currently used to run GitHub wikis have diverged from one another, Gollum strives to maintain compatibility with the latter.^[4]

Formats supported

Gollum wikis are simply Git repositories that adhere to a specific format. Gollum pages may be written in a variety of formats including Markdown, AsciiDoc, ReStructuredText, Creole and MediaWiki markup.^[5]

Features

• YAML Frontmatter for controlling per-page settings
• UML diagrams via PlantUML
• BibTeX and citation support (when using Pandoc for rendering)
• Annotations using CriticMarkup
• Mathematics via MathJax
• Macros
• Redirects
• Support for Right-To-Left Languages

Editing

Editing the pages can be done via the provided web interface, via its API or with a text editor directly in the git repository.