GitHub is a web-based repository service which offers the distributed revision control and source code management (SCM) functionality of GIT with a graphical user interface, desktop, and mobile integration. It also provides collaboration tools such as access control, wikis, task management, code review, bug tracking, and feature requests. It offers free accounts, often used to host opensource software projects, and private (paid) repositories.

Projects on GitHub can be accessed and manipulated using the git command-line interface and all of the standard git commands work with it. GitHub also allows registered and non-registered users to browse public repositories on the site. Multiple desktop clients have also been created by GitHub and other third parties which integrate with the platform.

GitHub is mainly used for code but can also be used for non-code files, it supports the following formats and features:

3D render files

Photoshop's native PSD format can be previewed and compared to previous versions of the same file.

Nested task-lists

Documentation and wikis

Small websites can be hosted from public repositories on GitHub. The URL format is http://projectname.github.io.

Issue tracking (including feature requests)

Visualization of geospatial data

Gantt charts

GitHub is a heavily used in the opensource development community but does not require hosted projects to meet the definition of Open Source.

JIRA is a project management and issue tracking solution that can integrate with other Atlassian products like the Confluence wiki.

JIRA is available either for installation on a local server or via cloud hosting. Open source projects can request a free license.

JIRA may used as a stand alone issue tracker and is best used with multi participant projects, to ensure that delegated tasks get completed and issues resolved. It can also be used as a support tool to track service delivery issues and ensure their visibility among the support group

Confluence is enterprise wiki software, available either for installation on a local server or via cloud hosting. Open source projects can request a free license. Confluence integrates with other Atlassian products like JIRA.

Omeka.net provides a web-publishing platform to curate collections and create exhibitions of digitized content. Omeka.net has grown out of the Omeka project. Omeka.net provides some of the same functionality as Omeka, but does not require the user to provide hosting or to maintain their installation in any way. However, use of Omeka.net limits customization, and hosting more than 500MB of content requires a paid account.

Objects in the collection can be cataloged with Dublin core metadata fields and georeferenced for display on a map. Omeka.net includes several plugins, including COinS (which makes objects in Omeka accessible to citations management software, like Zotero), HTML5 Media (to play audio and video), and Library of Congress Suggest (which will auto-populate fields with LoC authority and subject headings).