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Astryx vs Justblank: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Astryx and Justblank — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

A

Astryx

Meta

Free

Meta's open-source React design system with 150+ accessible components, built for developers and AI assistants to build with the same tooling.

Key features

  • 150+ Accessible Components: A cohesive React component library covering forms, navigation, data display, feedback, and more, all built for accessibility.
  • Agent-Ready CLI: A scriptable CLI (`astryx component list`, docs, scaffolding, codemods) that Cursor, Claude Code, and Codex can drive directly.
  • Swizzle for Full Ownership: Eject a component's full source into your project when you need to customize beyond props — no forking the library.
  • Theme via CSS Variables: Themes are CSS custom-property overrides, so designers can rebrand Astryx without wrapping or forking component source.
  • No Styling Lock-In: Styles are authored with StyleX internally but you override with Tailwind, CSS modules, or plain CSS — no library adoption required.
  • Seven Ready-Made Themes: neutral, butter, chocolate, matcha, stone, gothic, and y2k themes ship out of the box and are fully customizable.
  • Dark Mode + Brand Theming: Brand-level theming and dark mode work together across every component without extra wrapping.
  • Live Docs, Storybook & Sandbox: Full docs at astryx.atmeta.com, a hosted Storybook, and an interactive Sandbox for humans and agents to explore.

Best for

  • AI-Assisted UI Builds: Let an agent scaffold a React app that a designer and engineer both extend, all from the same component and CLI reference.
  • Rapid Product Prototyping: Assemble accessible screens from ready-to-ship templates and swap themes to prototype multiple brand directions.
  • Design System Adoption: Replace a hand-rolled component library with a maintained, accessibility-audited system without changing your styling approach.
  • Rebrand Without Forking: Ship a distinct visual identity by overriding CSS custom properties instead of forking the component source.
  • Multi-Framework Codebases: Bring Astryx into a project that already uses Tailwind, CSS modules, or plain CSS without adopting a new styling library.
  • Component-Level Customization: Use swizzle to eject specific components when you need internal control while keeping the rest of the system managed.
View Astryx details
Justblank logo

Justblank

Justblank

Freemium

Full-cycle AEO platform that turns competitive insights into actionable content to boost brand visibility in AI search.

Key features

  • AEO Analytics: Provides free analytics that reveal how AI engines interpret and rank a brand's content, surfacing gaps and opportunities versus competitors.
  • AI-Guided Content Creation: Generates and rewrites content tailored to AI search signals, with guidance to align copy with what AI engines prefer for higher visibility.
  • Competitive Insights Dashboard: Aggregates competitor content and ranking signals to highlight differences and suggest prioritized actions for content strategy.
  • Content Scoring & Measurement: Scores pages and content against AEO criteria and tracks performance changes over time to measure impact of optimizations.
  • Actionable Workflows: Converts analysis into step-by-step editorial recommendations and execution plans so teams can turn insights into published content updates.
  • Monitoring & Alerts: Tracks brand visibility across AI search endpoints and surfaces changes or opportunities so teams can react quickly to shifts.
  • Free AEO analytics to show how AI engines understand and rank content
  • Content creation and guidance optimized for AI search
  • Automated content rewriting and optimization suggestions
  • Measurement and analytics for content performance in AI search
  • Competitive insights to identify opportunities and gaps
  • Actionable execution tools to turn insights into content changes

Best for

  • Optimizing existing website pages to improve how AI search engines surface and summarize brand content, increasing discoverability.
  • Running competitive AEO analysis to identify which competitors AI engines prefer and prioritizing content rewrites to close gaps.
  • Generating AI-guided rewrites or new content briefs for SEO and editorial teams to align copy with AI search ranking signals.
  • Monitoring changes in AI-driven rankings and summaries to validate the impact of content updates and iterate on strategy.
  • Equipping marketing and branding teams with prioritized, actionable tasks that translate analytics into publishable content changes.
  • Providing agencies with a repeatable workflow to deliver AEO services to multiple clients, combining insights, content creation, and measurement.
  • Marketing teams optimizing site content for AI/answer-engine search visibility
  • Brand teams monitoring how AI engines rank and interpret competitor content
  • Content teams rewriting and optimizing articles to improve AI search placement
  • SEO/AEO workflows that convert analytics into prioritized content actions
  • Analytics-driven competitive research to inform content strategy
View Justblank details