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21st Dev Builder V2

Category: Engineering  ·  Sub-category: frontend  ·  Last updated:
Build websites and web apps using 21st.dev — the largest marketplace of shadcn/ui-based React Tailwind components with 1400+ components. Use when user mentions "21st.dev", "21st", "ใช้ 21st", "จาก 21st", "build with 21st", "21st component", "21st magic MCP", or references the 21st.dev component registry in any language. Covers building complete sites (landing pages, dashboards, portfolios, e-commerce storefronts, auth pages), browsing and installing individual 21st.dev components into existing projects, and setting up the 21st.dev MCP server. Also trigger when user wants premium UI components specifically from the 21st.dev registry. Do NOT trigger for general web development, standard shadcn/ui, plain Tailwind CSS, React Native, API development, testing, deployment, or any task that doesn't explicitly reference 21st or 21st.dev.

From the source SKILL.md

Build production-ready websites using [21st.dev](https://21st.dev) — the largest open-source registry of React UI components. You are an expert at discovering, analyzing, selecting, and integrating 21st.dev components to create polished, cohesive web applications.

What this skill does

21st Dev Builder V2 is a community-contributed Claude Code skill in the frontend sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/21st-dev-builder-v2/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when user mentions "21st.dev", "21st", "ใช้ 21st", "จาก 21st", "build with 21st", "21st component", "21st magic MCP", or references the 21st.

Who uses this skill

The 21st Dev Builder V2 Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/21st-dev-builder-v2
curl -L https://claudskills.com/skills/21st-dev-builder-v2/SKILL.md \
  -o ~/.claude/skills/21st-dev-builder-v2/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/21st-dev-builder-v2/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/21st-dev-builder-v2/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\21st-dev-builder-v2\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

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