ArchitectFree
Clean GitHub Pages theme with prominent sidebar for project docs.
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Jekyll Documentation Themes
Free Jekyll documentation themes for developer tools, APIs, and open source projects. Clean, searchable, and fully compatible with GitHub Pages.
7 themes
CaymanFree
Bright GitHub Pages theme with large hero header for project sites.
DinkyFree
Compact GitHub Pages theme with fixed sidebar for small project sites.
DocumentationFree
Help system theme with search, sidebar navigation, and clean typography.
Just the DocsFree
Most popular Jekyll docs theme with sidebar navigation and search.
PrimerFree
Official GitHub Pages primer theme — clean GitHub-style for docs.
SlateFree
Bold, dark GitHub Pages theme for developer docs with sidebar nav.