shadcn/ui vs Aceternity UI vs tent ui: Which Animated Component Library is Right for You?

Every developer evaluating component libraries in 2026 is looking at roughly the same shortlist: shadcn/ui, Aceternity UI, and a growing number of shadcn-based extensions. We built tent ui, so we have a stake in this comparison — we will tell you that upfront, and we will tell you when a competitor is the right choice.

This is not marketing copy. It is the comparison we would want to read if we were evaluating these libraries for a new project.

The three libraries, briefly

shadcn/ui is the baseline most developers mean when they say "component library" in 2026. It is not installed as a dependency — you copy the source into your project, which means you own every component outright. It is built on Radix UI primitives and styled with Tailwind CSS. No animations out of the box, but extremely composable and widely adopted.

Aceternity UI is the wow-factor library. It ships pre-built landing page sections with scroll-based effects, particle animations, 3D cards, spotlight effects, and hover parallax. The target audience is marketing sites and product landing pages that need to look premium immediately. It uses Framer Motion and Three.js for effects. Some components are free; others require a paid license.

tent ui (this project) is a custom shadcn registry. It is not a replacement for shadcn/ui — it extends it with components that shadcn does not ship: an animated save button with spring physics, a world map with interactive data points, an OTP input with animated focus rings, a pie chart built on Recharts, and others. You install components the same way you install shadcn components, and you own the source.

Comparison table

When to use shadcn/ui

shadcn is the right choice for almost every production app. Its components are accessible by default (Radix UI handles ARIA, focus management, keyboard nav), the community is large, and you are not locked into any library author's release schedule. Since you own the source, you maintain it yourself — which sounds like a downside until you try to patch a bug in a traditional npm component package.

If you need a button, a dialog, a select, a date picker, or a form — use shadcn.

Where shadcn falls short: it has no animated interactions, no data visualization components, and no opinionated "interesting" UI patterns. It is the foundation, not the building.

When to use Aceternity UI

Aceternity is the right choice when the goal is visual differentiation on a marketing surface — a landing page, a pricing section, a hero. The scroll-based effects and particle animations are genuinely impressive and would take weeks to build from scratch. For a product launch or a portfolio site, Aceternity can do in an afternoon what custom code would take days to achieve.

The trade-offs are real though. Three.js is a significant bundle addition — 250KB+ is meaningful on a page where your main job is conversion. Many Aceternity components are designed for large viewport widths and require careful adaptation for mobile. And because the effects are so distinctive, heavy Aceternity usage has a recognizable "look" — multiple sites sharing the same background gradients and spotlight components starts to feel samey.

For application UI — dashboards, SaaS product interfaces, forms, data tables — Aceternity is the wrong tool. The effects compete with the content users need to interact with. Wow-factor animations in a user interface create fatigue; wow-factor animations on a marketing page create excitement.

Also note: Aceternity's most impressive components require a paid license. The free tier is useful but limited if you want the full effect suite.

When to use tent ui

tent ui is the right choice when you need components that shadcn does not ship, built to the same standards you already expect from shadcn, with purposeful animations rather than decorative effects.

Use tent ui for:

• An animated save button that confirms a save with spring-loaded state transitions — users notice when their action succeeded without reading a toast notification
• A password input with zxcvbn strength scoring, Caps Lock detection, and accessible ARIA labels — the kind of component that takes a week to build right from scratch
• An OTP input where the focus ring animates between fields — small detail, big polish
• A pie chart built on Recharts with consistent shadcn styling
• A world map for geographic data visualization

These are production UI components, not landing page effects. They solve specific problems developers encounter in real applications. The animations are intentional — each one communicates state or guides attention, rather than adding visual interest for its own sake.

The honest answer: you will use all three

Most serious projects end up using shadcn as the base, Aceternity (sparingly) for marketing sections where visual impact matters, and an extension library like tent ui for specific components not in the shadcn catalog.

The question is not "which one" — it is "which one for which job."

For application UI: shadcn/ui is the baseline. tent ui fills the gaps.

For marketing surfaces: Aceternity UI for maximum visual impact. shadcn for the utility UI underneath.

For form components with good UX: tent ui's password input and OTP input are more complete than anything in the standard shadcn set.

For data visualization: tent ui's pie chart and world map are the only options in this ecosystem that share shadcn's styling conventions.

Try them side by side

The fastest way to evaluate is to install a specific component from each and compare:

Copy# From shadcn — a base button
npx shadcn@latest add button
 
# From tent ui — animated save button
npx shadcn@latest add https://ui.srb.codes/r/animated-save-button.json
 
# From tent ui — password input
npx shadcn@latest add https://ui.srb.codes/r/password-input.json

All three land as source in your project. You own them, you can modify them, and none of them require ongoing dependency management with an external library author.

The full tent ui component catalog is at ui.srb.codes/docs/components. Components that might specifically interest you based on this comparison: World Map, OTP Input, Password Input, and Animated Save Button.