uSpec
uSpec is a free, open-source design system. Generate design system documentation for your UI components, directly from your AI agent. It has 248 GitHub stars and is released under the MIT license. A live demo is linked from this page.
github.com/redongreen/uSpec (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
Get started
Copy the files into a new folder with degit (no git history), or clone the repository with git.
npx degit redongreen/uSpec my-ui
cd my-uigit clone --depth 1 https://github.com/redongreen/uSpec.git my-uiSources: GitHub docs on template repositories, degit.
About uSpec
Generate design system documentation for your UI components, directly from your AI agent. Describe a component to your agent. uSpec captures it with the uSpec Extract Figma plugin, compiles a canonical component contract (.json) plus a portable implementation guide (.md), then renders sections of that specification back into Figma as annotation frames. Works with Figma Console MCP or the native Figma MCP, inside Cursor, Claude Code, or Codex.
Built with
- TypeScript
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How do I use uSpec?
Copy the files into a new folder with npx degit redongreen/uSpec my-ui (no git history), or fork the repository on GitHub. Then follow the README for the install and dev commands.
Can I use uSpec for commercial projects?
Yes. uSpec is released under the MIT license, a permissive license that allows commercial use as long as you keep the copyright and license notice. Third-party assets bundled with it (images, fonts, icons) may have their own terms.
Is uSpec maintained?
The repository's most recent commit was on Sep 3, 2026. Its latest release is v2.7.0. appsgit only lists templates from repositories with a commit in the last six months.