- Webhint - Website analyzer from Microsoft and Open JS foundation.
- Google Pagespeed Insights - Analyze website performance
- web.dev - Measure - Similar to Pagespeed insights
- Can I Use - Browser support for modern web technologies
- Bootstrap - Responsive CSS framework.
- MaterializeCSS - A responsive framework based on Material Design.
- Ant Design - Design system for enterprise applications.
- UI kit - Lightweight and modular frontend framework
- Spectre - A Lightweight, Responsive and Modern CSS Framework
- Tailwind - A utility-first CSS framework for rapidly building custom designs.