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Design Systems Maintained by Major Tech Companies: Enterprise UI Libraries Explained

April 12, 2026 alexpate/awesome-design-systems ↗

The world's largest technology firms—including Google, Microsoft, Amazon, and Meta—maintain open-source design systems that provide component libraries, design tokens, and strict accessibility standards for building consistent user interfaces at scale.

The alexpate/awesome-design-systems repository curates a comprehensive index of interface libraries used across the software industry. Among the hundreds of entries documented in README.md, a distinct subset consists of battle-tested design systems maintained by major tech companies that power millions of user interactions daily. These enterprise-grade systems deliver production-ready React components, them

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{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}

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