#88th of 78 in SaaS and app starters
astryx
React 19 design system with 150+ components, themes and a CLI for agents
- Stars
- 24.4k
- License
- MIT
- Last commit
- Nov 2026
- Last release
- Nov 2026
- Language
- TypeScript
681 on 21 Apr 202624,398 on 10 Nov 2026
From GitHub's daily star counts.
Checked on GitHub.
Overview
Astryx is a React component library from Meta with 150+ typed, accessible components, seven ready-made themes, dark mode and page templates. Styles are authored in StyleX but shipped as pre-built CSS, so consumers need no build plugin and can override with className (Tailwind, CSS modules, plain CSS). A CLI exposes component docs, scaffolding, themes and codemods so coding assistants and people use the same reference. Currently in beta.
Who it is for: Frontend teams building React apps on a themeable design system
Ranked among open-source alternatives to ShipFast (#8 of 10).
Strengths
- Ships pre-built CSS; no build plugin, PostCSS or Babel config required
- Themes are CSS custom property overrides, so no forking or wrapping components
- Swizzle ejects a component's full source into your project
- CLI provides component docs and scaffolding for both developers and AI assistants
Weaknesses
- Beta status; APIs may change before a stable release
- Requires React 19 or later
- Chart packages are published only under the @canary npm tag
- Not an app starter: no auth, billing or database included
What it needs
- TypeScript
- Needs React 19+, @stylexjs/stylex, Node 22+ and pnpm 11 (contributors)
Quick answers
Is astryx open source?
Yes. Its code is on GitHub under the MIT license.
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