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shadcn.io vs Knowns UI

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

shadcn.io compared with Knowns UI
Detailshadcn.io logo shadcn.ioKnowns UI logo Knowns UI
What it doesThe shadcn library your AI agent builds with. React components and blocks for AI products
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Not given
PricingNot given Free: $0 (45 base components, 17 agent and chat views, no account required). Pro Monthly: $9.99/month (all Pro features, cancel anytime). Pro Lifetime: $49 once during early access (then $89). Pro Team: $149 once during early access (then $249), up to 10 developers.
Key features
  • 6,231 pre-built blocks in 56 categories
  • 175 free components for React, Vue, Svelte and Solid
  • Support for React, Vue, Svelte and Solid frameworks
  • TypeScript and Tailwind CSS v4 styling
  • Right-to-left language support
  • Reduced motion animation support
  • 294k icons from multiple libraries
  • Agent views including graphs, tool calls, approvals and plans
  • Chat interfaces with AI answer, message actions and composer
  • Blocks and templates for app screens and marketing sections
  • Animated backgrounds and text animations
  • SDK adapters for Claude Agent SDK, Vercel AI SDK and OpenAI Agents SDK
  • MCP server with semantic docs search
  • 45 base components including buttons, menus, dialogs and data tables
  • Run store and event types for managing agent state
What makes it different
  • All components built on WAI-ARIA accessible headless libraries
  • Source code installed directly into your repo, fully owned and customizable
  • Free tier with 123 components, blocks and templates requiring no account or key
  • Works with popular AI frameworks and follows your existing shadcn theme
  • Pay once lifetime or monthly during early access with no renewal required
  • AI-ready documentation searchable by Claude Code, Cursor and VS Code
Community votes00
DR (Domain Rating by Ahrefs)38 +1 (up) since last check6 no change since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)3314
Referring domains (Majestic)1981

3 details filled in for both companies.

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