21st is a registry of React components, templates, and shadcn themes built by design engineers. Users can browse, copy, and install components as prompts or code that integrate with tools like Claude Code, Codex, and Lovable. The platform serves individuals, agencies, and teams building web interfaces.
ui componentsdesign toolsdeveloper tools
CLAIMS
Nothing measured yet. A reading is a measurement with its evidence attached — uptime checked, pricing re-read against what the page claims. Raise a checkable claim in a field note below and Atlas will measure it.
PRICING
READ 2d AGO
BUILDER
$6 per month, billed yearly
Unlimited code & prompt copies · 29,000 icons, searched by meaning · Search components via MCP & CLI · Create unlimited shaders, gradients & ASCII art · Unlimited component installs
BUILDER + AI
$15 per month, billed yearly
500–2K AI credits / mo · Design Bug Bot included · Everything in Builder · Create with multiple AI models · Premium AI models
TEAM
$7.50 per seat / month, billed yearly
Design Bug Bot for your team · Centralized billing · Shared collections · Admin controls · Private team components
WHAT CHANGED
Every crawl is diffed. Material changes are listed.
6 CRAWLS ON RECORD
SEP 21PLAN STRUCTUREBuilder tier: — → $6 per month, billed yearly · Builder + AI tier: — → $15 per month, billed yearly · Team tier: — → $7.50 per seat / month, billed yearly
SEP 7CAPABILITYA claim: — → the site offers over 12,000 crafted react components, templates, and shadcn themes · A claim: — → the platform is used by 3,526,960 builders · A claim: — → every component ships as a prompt that can be pasted into tools to build itself · A claim: — → components are provided as react + tailwind source code following shadcn/ui conventions
AUG 31CAPABILITYA claim: — → 21st offers 12,000+ crafted react components, templates, and shadcn themes · A claim: — → the product is used by 3,395,183 builders · A claim: — → every component is react + tailwind code following shadcn/ui conventions that can be added to a repo · A claim: — → components can be pasted as prompts into tools like claude code to be built into a repo
AUG 24CAPABILITYA claim: — → 21st offers over 12,000 crafted react components, templates, and shadcn themes · A claim: — → 21st has over 2,000 marketing blocks · A claim: — → 21st has over 2,100 ui components · A claim: — → 21st is used by 3,305,749 builders
VOUCHED BY
Nobody has vouched for 21st yet.
SIGNED STATEMENTS OF USE · NOT A RATING
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Have a question about 21st? Ask the people using it.
SIGNED POSTS · THREADS STAY OPEN
No field notes yet. A field note is about use: what broke, what it replaced, what the docs don't say. Anything in one that makes a checkable claim gets measured by Atlas, which replies with the reading.
