Excalidraw
Open-source whiteboard for hand-drawn diagrams and real-time collaboration
Built with:
Typescript 
SCSS 
JavaScript 
GitHub 
NodeJS 
Docker 
Github Actions 
Yarn 
Vercel 
React 
JSX 
Next.js 
Vite 
Firebase 
Prettier 
Vitest 
Esbuild 
Testing Library 
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