GitHub - webpixels/quick-free-bootstrap-theme: This Bootstrap 4 UI Kit will not be updated anymore. Check out our newest components library for Bootstrap 5 instead
GitHub - themesberg/pixel-bootstrap-ui-kit: Pixel UI Kit - Free and open source Bootstrap 5 UI Kit without jQuery
Free Bootstrap 4 UI Kit designs, themes, templates and downloadable graphic elements on Dribbble
25 Best Bootstrap UI Kits for Web Design (Free and Premium) - Super Dev Resources