A list of design systems and design resources that gov departments have created. I'm more focussed on design guidance, rather than front end developer code resources but there is some cross over (there's a great list by @nickcolley you should check out for that https://github.com/nickcolley/awesome-govuk-frontend)
- GOV.UK Design System: https://design-system.service.gov.uk
- Backlog and community discussion: https://github.com/alphagov/govuk-design-system-backlog/projects/1
- Digital Marketplace frontend toolkit: https://alphagov.github.io/digitalmarketplace-frontend-toolkit/
- GOV.UK Publishing guide: https://docs.publishing.service.gov.uk/manual/components.html#component-guides
- Home Office Design System: https://design.homeoffice.gov.uk/
- Backlog and community discussion: https://github.com/UKHomeOffice/design-system/projects/1
- Home Office Form builder: https://ukhomeofficeforms.github.io/hof-guide/
- DWP Design System: https://design-system.dwp.gov.uk/index
- Backlog and community discussion: https://github.com/dwp/design-system-community-backlog/projects/1
- HMRC Design patterns: https://design.tax.service.gov.uk/hmrc-design-patterns/
- Backlog and community discussion: https://github.com/hmrc/design-patterns/projects/1
- MOJ Design Systems: https://moj-design-system.herokuapp.com/
- MOJ Design patterns backlog: https://github.com/ministryofjustice/mojdt-design-system-backlog
- CJS Crime programme design patterns: https://cjscpp-design-patterns.herokuapp.com/
- HMCTS Design System: https://hmcts-design-system.herokuapp.com/
- Digital Land Design: https://digital-land.github.io/design-system/
- DVSA Front-end: https://dvsa-front-end.herokuapp.com/
- Design elements: http://land-registry-elements.herokuapp.com/
- Design system: https://hmlr-design-system.herokuapp.com/
- Form builder (lets you create a form transaction visually): https://github.com/DEFRA/digital-form-builder
- Design System: https://github.com/companieshouse/ch-design-system
- ONS website pattern library: https://onsdigital.github.io/ons-pattern-library-starter/
- Electronic questionnaire product design system: https://ons-design-system.netlify.app/
- ONS Prototyping kit for internal systems: https://github.com/ONSdigital/prototype-kit
- Royal Navy: https://docs.royalnavy.io
- NHS design system: https://service-manual.nhs.uk/design-system
- NHS style guide: https://service-manual.nhs.uk/content
- NICE design system: https://design-system.nice.org.uk/
- NICE backlog and discussion: https://github.com/nice-digital/nice-design-system/discussions
- Storybook to play around with component options: https://storybook-nds.netlify.app/?path=/story/components-action-banner--default
- Scottish Government's Digital Scotland Design System: https://designsystem.gov.scot/
- Brighton & Hove City Council: http://csmdemo.uk/BHCC-website-design-patterns/index.php?p=welcome
- Essex: https://essex-design-system.herokuapp.com/
- Transport for West Midlands (West Midlands Network): https://designsystem.wmnetwork.co.uk
- Poncho (in Spanish): https://argob.github.io/poncho/
- Australian Government Design System: https://designsystem.gov.au/ (decommissioned but still available as of November 2021)
- GitHub repository (archived, read-only): https://github.com/govau/design-system-components/
- Design system for NZ public sector websites: https://design-system-alpha.digital.govt.nz/
- US Web Design System: https://designsystem.digital.gov/