Core libraries

• GOV.UK Elements - GOV.UK Elements form the building blocks from which all pages are made. https://govuk-elements.herokuapp.com/
  • sass
• GOV.UK Template - Packaging of a template containing the GOV.UK header and footer, and associated assets. http://alphagov.github.io/govuk_template/
  • jinja, ejs, mustache
• GOV.UK Frontend Toolkit - Generic tools and helpers for building GDS front-end apps
  • gem, npm, composer

Ruby

• GovukElementsFormBuilder - Form builder helper methods to develop GOV.UK elements styled applications in Ruby on Rails https://govuk-elements-rails-guide.herokuapp.com/ [govuk_elements_rails, govuk_frontend_toolkit]
• Jekyll theme

AngularJS

• Single Page Platform Development Kit (PDK) - This Platform development kit includes and extends the GDS GOV.UK packages for developing citizen and business facing services as a platform. [govuk-elements-sass, govuk_template_mustache]

Marko

• govuk-elements-marko - A set of Marko components implementing GOV.UK elements.

Nunjucks

• govuk-elements-nunjucks - This includes a selection form macros from GOV.UK elements, these are using nunjucks.
• trade-elements - Front end pattern library for Department of International Trade [govuk-elements-sass, govuk_frontend_toolkit]

Jinja

• Digital Marketplace frontend toolkit - Front end toolkit for the Digital Marketplace http://alphagov.github.io/digitalmarketplace-frontend-toolkit/

Django

• Django GOV.UK Template - Django app that builds template and elements components from the Government Digital Services style guide

Components

• Accordion component a stand-alone extraction of the accordion component

Other

• IPO Assets - This project is used to build the UK Intellectual Property Office frontend UI styling. [govuk-elements-sass, govuk_template_ejs]
• HMRC Assets frontend - Shared static assets for frontends on the Multichannel Digital Tax Platform http://hmrc.github.io/assets-frontend [govuk-elements-sass, govuk_frontend_toolkit, govuk_template]