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Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
PDFreactor - PDFreactor is a cross-platform enterprise-grade HTML to PDF conversion engine.
Milligram - A minimalist CSS framework
PageLines - ChatGPT for Your Website
Material UI - A CSS Framework and a Set of React Components that Implement Google's Material Design