Tabler is free and open-source HTML Dashboard UI Kit built on Bootstrap

Bootstrap 5 & Material Design UI KIT

Free Bootstrap Admin & Dashboard Template

Material Dashboard - Open Source Bootstrap 5 Material Design Admin

Drag and drop page builder library written in vanilla javascript without dependencies or build tools.

Free and Open Source UI Kit for Bootstrap 5, React, Vue.js, React Native and Sketch based on Google's Material Design

Open source admin template based on Bootstrap 5 and React.js

Adminator is easy to use and well design admin dashboard template based on Bootstrap 5 with dark mode for web apps, websites, services and more

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 100+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI.

Blazorise is a component library built on top of Blazor with support for CSS frameworks like Bootstrap, Tailwind, Bulma, AntDesign, and Material.

Open source admin template based on Bootstrap 5 and Vue 3

A free, open source, Bootstrap admin theme created by Start Bootstrap

Halfmoon is a highly customizable, drop-in Bootstrap replacement. It comes with three built-in core themes, with dark mode support for all themes and components.

Free and Open-source Bootstrap 5 Admin Dashboard Template and Landing Page

Free and open source Bootstrap 5 Admin Dashboard Template with vanilla Javascript

A flat design, one page, MIT licensed Bootstrap portfolio theme created by Start Bootstrap

A Bootstrap 4 resume/CV theme created by Start Bootstrap

A one page HTML theme for agencies created by Start Bootstrap

An off canvas sidebar navigation Bootstrap HTML template created by Start Bootstrap

A clean Bootstrap blog theme created by Start Bootstrap