Cinny
Cinny is a web based Matrix client programmed using the React framework and Vite. Cinny was originally written using JavaScript alone but then was partially rewritten in TypeScript in version 3. Cinny v3 introduced a full UI overhaul, a Rich Input Editor, support for sending multiple files at the same time, a file viewer, a faster UI and many quality of life changes. Unlike version 2, version 3 does not support sending or rendering wiki:LaTeX.