About This Tool

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What This Tool Does

This tool helps you compare open source design systems side-by-side to make informed decisions about which system best fits your project needs.

Understanding the Metrics

AI Code-Gen Friendly

Indicates how well large language models (LLMs) like Claude, ChatGPT, or GitHub Copilot can generate accurate, working code using this design system. Systems with better documentation, consistent APIs, and more training data presence score higher.

  • Excellent - LLMs can reliably generate correct components with minimal errors
  • Good - LLMs can generate code but may require some corrections
  • Fair - Limited LLM support, requires significant manual fixes
  • Poor - LLMs struggle to generate working code

Frameworks

The JavaScript frameworks and platforms this design system officially supports (React, Vue, Angular, Web Components, etc.).

Component Count

Approximate number of UI components available in the system (buttons, inputs, modals, etc.). More components means more out-of-the-box solutions.

GitHub Stars

Number of stars on the project's GitHub repository. While not a perfect metric, it indicates community interest and adoption.

Accessibility

Level of accessibility support, typically measured against WCAG (Web Content Accessibility Guidelines) standards:

  • WCAG 2.1 AA - Meets industry standard for accessible web content
  • WCAG 2.1 AAA - Meets enhanced accessibility requirements

Theming

How customizable the design system is:

  • Advanced - Extensive theming with design tokens, CSS variables, full customization
  • Moderate - Some customization options available
  • Limited - Minimal theming support

Design Tools

Integration with design tools:

  • Figma - Design files available in Figma community
  • Penpot - Open source design files available
  • Storybook - Interactive component documentation/playground

Maturity

Development stage of the design system:

  • Stable - Production-ready, versioned releases
  • Beta - Feature-complete but still in testing
  • Alpha - Early development, frequent breaking changes

How to Use the Comparison Feature

  1. Browse the table and check the boxes next to two design systems you want to compare
  2. Click the "Compare Selected" button
  3. Review the side-by-side diff showing differences between the systems
  4. Look for + additions (features unique to each system) and - removals (missing features)

Contributing

This is an open source project. If you'd like to add more design systems or update existing data, please visit our GitHub repository.