Spectrum UIvsAceternity UI
Spectrum UI and Aceternity UI are both free, animated React component libraries built with Tailwind CSS and Framer Motion. Aceternity is known for bold, marketing-grade hero animations; Spectrum UI focuses on animated components you can drop into a real product, install through the shadcn CLI, and pull straight into your editor with an MCP server.
Ship animated, accessible React & Next.js UIs in minutes. You get production-ready components that already move, own every line (copy-pasted into your repo), install with the shadcn CLI, and can add them from your editor via an MCP server — free and open source (MIT).
A free collection of eye-catching, animation-heavy React components popular for landing pages and hero sections, with paid Pro templates.
Feature comparison
| Feature | Spectrum UI | Aceternity UI |
|---|---|---|
| Price | Free (MIT) | Free · paid Pro templates |
| You own the code (copy-paste) | Yes | Yes |
| Animated (Framer Motion) | Yes | Yes |
| Install via shadcn CLI | npx shadcn add @spectrumui/… | Copy-paste / registry |
| Built on shadcn/ui + Radix conventions | Yes | Partial |
| Accessibility from Radix primitives | Yes | Varies by component |
| MCP server for AI assistants (Cursor, Claude, Windsurf) | Yes | No |
| TypeScript-first | Yes | Yes |
| Dark mode | Yes | Yes |
| Best fit | Product UI + polished animation | Landing-page hero effects |
Choose Spectrum UI when
- You want animated components that still fit a real product, not just a landing page.
- You already use shadcn/ui and want components that install with the same CLI.
- You want your AI assistant to pull components directly via an MCP server.
- Accessibility and Radix primitives matter to you.
Choose Aceternity UI when
- You need maximal, showy hero animations for a marketing page.
- You want Aceternity's specific signature effects.
- You're buying their Pro landing-page templates.
Spectrum UI vs Aceternity UI
questions
Yes. Spectrum UI is free and open source under the MIT license. Components are copy-paste React and Tailwind files that you own, and you can install them with the shadcn CLI (npx shadcn add @spectrumui/…).
Ship it with Spectrum UI
Free, open source, copy-paste. Browse the components or install with the shadcn CLI.
Comparison based on publicly available information, last reviewed July 2026. Details for Aceternity UI may change — verify current features on their site.