21st

Community registry of 10,000+ hand-crafted React and Tailwind CSS components and templates. Preview live, install with one command — for you and your AI agent.

VisitClaim or join

Founded: 2025
Headquarters: San Francisco
Company size: 1–10
Products tracked: 2

Products by 21st

2 products

21st.devCommunity registry for browsing, copying, and installing 10,000+ React and Tailwind CSS components and templates via AI-ready prompts or shadcn CLI.0.00 reviewsDeveloper Tools & Platforms

21st AIMulti-model AI generation and refinement tool for UI, including Sketch (multi-model comparison), Code mode (React + live sandbox), and refine & iterate on a take.0.00 reviewsDeveloper Tools & Platforms

Pricing for 21st

Subscription, Tiered, Per Seat, Usage Based

This is the broad commercial model reported for 21st. Product-level terms are listed below when available.

21st.devCommunity registry for browsing, copying, and installing 10,000+ React and Tailwind CSS components and templates via AI-ready prompts or shadcn CLI.

Pricing model: Subscription
Entry option: Free plan
Starting price: $6 per month billed yearly (Builder)

21st AIMulti-model AI generation and refinement tool for UI, including Sketch (multi-model comparison), Code mode (React + live sandbox), and refine & iterate on a take.

Pricing model: Subscription, Usage Based
Entry option: Free plan
Starting price: $15 per month billed yearly (Builder + AI)

Trust profile

Security and compliance

SOC 2

Encryption in transit (TLS 1.2 or higher)

Encryption at rest on supported subprocessors

Multi-factor authentication on internal accounts with production access

Role-based access controls with regular access reviews

Background checks for personnel handling production data

Continuous vulnerability monitoring of codebase and dependencies