Accordion
94 resources in the index ship this component, best first. Group: Data Display.
Also called · collapse · collapsible sections · expandable · expander · expandable section · show hide · arrow toggle · toggle sections
Before you ship
5- 01Header — The clickable area that triggers expanding and collapsing and has a title
- 02Expand/collapse icon — Visual indicator of the current state — typically a plus/minus, or a caret/chevron that rotates between states
- 03Content area — The content that shows or hides when toggled, containing detailed information associated with the header
- 04States — Default (collapsed), expanded, hover, focused, and disabled
- 05Expanding logic — Decide if users can open multiple sections at once, or one at a time
Checks from checklist.design, MIT.
Ships it
94- ARIA Authoring Practices Guide · W3C's 30 canonical widget patterns with keyboard maps and working HTML examples
- Ark UI · 49 headless components with one API across React, Vue, Solid and Svelte
- assistant-ui · React chat primitives and shadcn-installable UI for LLM apps, copilots, and agents
- Chakra UI · 114 accessible React components with a token-driven styling system
- Kumo · Cloudflare's production React library: 44 components on Base UI + Tailwind v4, MIT
- The Component Gallery · 60 UI components cross-referenced against 95 real design systems
- Coss UI · Cal.com's design system: 60 Base UI primitives shipped as a shadcn registry
- daisyUI · 68 pure-CSS Tailwind components as semantic class names, MIT, with 35 built-in themes
- GPUI Component · 60+ Rust desktop UI components for GPUI, with a 200K-line code editor and charts
- HeroUI (formerly NextUI) · 71 React components on React Aria + Tailwind v4, with an MCP server
- Intent UI · 80+ React Aria components with real ARIA semantics, MIT and copy-paste
- Mantine · 150+ styled React components, 70+ hooks, CSS modules, no runtime CSS-in-JS
- MUI · React component suite: Material UI, MUI X data grid, charts and date pickers
- NameThatUI · Visual dictionary that maps 76 web and macOS UI elements to their real names and code
- Neobrutalism (ex RetroUI) · Neo-brutalist shadcn registry: 60 free components, 158 Pro blocks, 6 templates
- Radix UI · Unstyled accessible React primitives, plus Themes, Colors and Icons
- React Aria · Adobe's unstyled React primitives with ARIA, keyboard, i18n and touch behavior built in
- React Bits Pro · 703 paid React items in one license-gated shadcn registry: 134 animated components, 538 blocks, 11 templates and an Agent Kit
- remocn · 282 Remotion components for product-demo video, installed by the shadcn CLI
- shadcn/ui · 64 copy-in React components on Radix + Tailwind, installed by CLI
- shadcn/ui (GitHub) · Source monorepo for shadcn/ui: components, CLI, registry schema, skills
- UI TripleD · 282-item shadcn registry of motion components, sections and full pages
- Untitled UI · Figma UI kit plus React Aria + Tailwind v4 component library with an MCP server
- UX Patterns for Devs · 92 UX patterns with accessibility rules, an MCP server and llms.txt
- 8bitcn/ui · Retro pixel-art restyle of shadcn/ui: 57 components and 44 blocks
- Aceternity UI · 132 motion-heavy React sections; 329 registry items; 17 paid templates
- AlignUI · React + Tailwind design system with a code-synced Figma library
- Annnimate · 80 copy-paste GSAP animation components for React, Vue and vanilla
- Appica UI · 70 React components on Base UI and Tailwind v4, with an llms.txt and markdown docs
- Base UI · 37 unstyled React components from the Radix, Floating UI and MUI teams
- beUI · 76 React motion components and AI agent UI, installed through a shadcn registry
- beUI · 106-item Motion + Tailwind registry for React, shadcn-compatible
- Carbon Design System · IBM's open-source design system: 44 documented components across five frameworks
- coss ui · Cal.com's Base UI + Tailwind v4 registry: 56 primitives and 500 particle variants
- Cult UI · 82 free design-engineer components plus 10 paid full-stack AI starters
- Design System Checklist · 232-item open-source checklist for design language, foundations and components
- Design Systems Surf · Database of ~90 public design systems, cross-cut by component and by foundation topic
- Details Inspo · 3,500+ web design details filed by component, interaction and industry
- ElevenLabs UI · First-party shadcn registry for voice agents: orbs, waveforms, transcripts
- Extend UI · shadcn registry of PDF, DOCX, XLSX and CSV viewers with bounding-box citations
- Flowbite · 56+ MIT Tailwind components with vanilla-JS behaviour, plus a paid 450+ block library
- Fluent 2 · Microsoft's design system: 47 web components plus Windows, iOS and Android kits
- Fluid Functionalism · shadcn registry of 23 components where motion carries state, not decoration
- gluestack-ui · CLI-installed React Native component library built on NativeWind and Tailwind v4
- HextaUI · 103 shadcn registry items: primitives plus AI, auth, billing, settings and team blocks
- hue · Agent skill that turns any brand URL or screenshot into a design system
- HyperUI · 537 free MIT Tailwind blocks across application, marketing and neobrutalism sets
- Inclusive Components · Heydon Pickering's 11 deep essays on building components that stay accessible
- interior.dev · 54 MIT micro-interaction components for React, installable as a shadcn registry
- Kinetics · 153 spring-physics micro-interactions with copy-paste CSS and React
- Motion Primitives · 34 MIT motion components for React, installed one at a time by shadcn CLI
- Neobrutalism Components · 48 shadcn/ui components restyled as neobrutalism, plus 4 free Tailwind templates
- Open UI · W3C Community Group research and specs for native, styleable HTML controls
- OpenUI · MIT generative-UI framework: streaming UI language, component library, chat shell
- Osmo · Paid vault of 231 GSAP/Webflow interaction recipes plus a 100-button pack
- Sections.wtf · ~275 landing-page sections from real sites, sorted into 22 section types
- shadcn design · Paid Figma kit for shadcn/ui, plus coded Pro Blocks and a Figma-to-code plugin
- Shadcn Space · 401+ shadcn blocks, 393+ component variants and 10 site templates, freemium
- shadcn Studio · 800+ shadcn blocks, 16 templates, themes, MCP server and Figma-to-code
- shadcn-templ · shadcn/ui ported to Go and templ: 52 components, 27 blocks, its own CLI
- Shadcn UI Blocks · 200+ free copy-paste marketing and app blocks built on shadcn/ui
- Shadcnblocks · 1,837 paid shadcn blocks and 19 Next.js and Astro templates, lifetime license
- shadcncraft · Paid shadcn/ui registry plus a 1:1 Figma kit, 8 styles across Radix and Base UI
- Shark UI · 86 shadcn-style components built on Ark UI, installed through the shadcn CLI
- SmoothUI · 130 animated React components including 33 text effects and 16 shader transitions
- Subframe · Visual editor that emits React + Tailwind + Radix code, with an MCP server
- Tailwind Plus · 500+ paid Tailwind UI blocks, 13 Next.js templates and the Catalyst React kit
- Tamagui · Universal React styling engine, optimizing compiler and ~48 components for web and native
- Toolcraft · MIT React starter for canvas design tools, with agent docs baked in
- Transitions.dev · 35 essential web-app transitions, packaged as an agent skill
- Tremor · 40 copy-paste React chart and dashboard components, plus 300+ free blocks
- unlumen UI · Freemium shadcn registry of Motion-driven React components
- Watermelon UI · MIT shadcn registry: 131 animated components, 187 page blocks, 30 base primitives
- Animate UI · 73 motion-first React components shipped as a shadcn registry
- Flowponent · 1,091 copy-paste Webflow cloneable sections, 335 of them free
- Homely Real Estate Template · $29 Next.js 15 + shadcn real estate site with listings and detail pages
- hue (hueapp.io) · Landing site and live demo for the hue design-system skill
- Luxe · 17 copy-paste React components on Radix and Tailwind v4, with its own CLI
- MVPBlocks · 100+ copy-paste Next.js + Tailwind marketing and dashboard blocks, plus 7 templates
- MVPBlocks (source repo) · BSD-3 source for the MVPBlocks block library and its Next.js docs site
- Park UI · 59 styled Ark UI components delivered by CLI, themed with Panda CSS
- Preline UI · Free Tailwind library with 640+ examples, 204 blocks and documented plugin wiring
- shadcn-glass-ui · Glassmorphism component set for React that installs through the shadcn CLI
- ShadcnShip · shadcn blocks pre-wired to Supabase auth, Stripe billing and Resend email
- Shoogle · Search engine across 277 shadcn registries, with an MCP and CLI namespace
- Soft Club UI · 118 Radix-based React components in a late-90s dark-glass aesthetic
- Tailark · shadcn registry of marketing-site blocks, illustrations and brand logo SVGs
- TailwindAdmin · shadcn/ui admin dashboard template in React, Next.js, Vue, Angular and TanStack
- Tark UI · One-page showcase of 41 Ark UI components with 333 Tailwind-styled examples
- The Gridcn · Tron-styled shadcn registry: 140 items, six themes, HUD and 3D grid components
- Unsection · Gallery of 4,000+ website sections indexed by section type, not by whole page
- Untitled UI on GitHub · The MIT source repos behind Untitled UI: components, icons, and 3 starter kits
- Institute of Health · Webflow marketing site for a functional-nutrition certification course
- Pando (Pluralsight Design System) · Pluralsight's design system documented in zeroheight; public code frozen at v0.7.1