10+ Best BootStrap Alternatives – Alternate to BootStrap
Bulma is a CSS Framework, Build beautiful interfaces using Bulma Framework.
Tailwind is a utility based CSS framework and best Alternative for BootStrap as it has similar styles.
Material Design is a frontend CSS framework by Google.
A modern responsive front-end framework based on Material Design
Spectre is a lightweight modern and Responsive CSS Framework for faster and extensible web development