Astryx
Open source design system for developers and designers, with customizable themes, components, and agent ready support.
Recommended for
- Solo / Indie
- Idea-Stage
- Pre-Seed
SSIE
Stage Fit Recommendations
Following data shows why Astryx is recommended for listed teams. The Fit Score represents the percentage fit of Astryx to each company stages, as calculated by the SSIE.
Stage
Fit Score
Fit Reasons
Solo / Indie
$0–$2,000 MRR
67- CLI installs AI agent guidance files
- Open-source project with public setup docs
Idea-Stage
$0
70- 180 accessible React components
- Production-ready templates for common pages
Pre-Seed
$0–$10k MRR
77- Customizable themes ready for projects
- Pinned CLI versions align team workflows
- Scaffold projects and browse via MCP

Description
Astryx is an open source design system that provides customizable components, templates, themes, and a playground for building user interfaces. It is built on React 19 and Stylex and is currently in beta. The system is designed to be fully customizable and agent ready. It includes documentation sections for components and themes as well as a playground for experimentation. Astryx offers themes that fit a brand, allowing users to start from existing presets rather than from scratch. The platform emphasizes adapting to a team's workflow to help ship faster with creative freedom.
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Reviewed by a human. SSIE Fit Scoring.
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