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21st.dev

21st.dev

software

1 creator use or recommend it

▲ 1 active in the last 90 days

1 use
Last discussed Sep 25, 2026

A UI component library and marketplace that provides searchable, high-quality UI components with MCP integration for use with AI coding agents.

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How 21st.dev compares

1 creator weighed in
Mobbin Different focus
app design inspiration platform

Liam uses 21st.dev for individual UI components via AI, and Mobbin for browsing complete, finished websites.

1 creator
Liam Ottley

"I came back with two tools that are not sponsoring this video in this design process. And that is 21st Dev, and it is also Mobbin. So, I got a subscription to each of these. When you give it the MCP access, it can then query 21st.dev and..."

Used alongside Mobbin as a complementary tool — 21st.dev for individual components, Mobbin for completed finished websites

What creators say

Used for: Searching for UI components (orbs, spheres, globes) to integrate into the website via Claude Code MCP Praised: Searchable component library accessible via MCP; allows Claude Code to find a... vs: Used alongside Mobbin as a complementary tool — 21st.dev for individual compo...

"I came back with two tools that are not sponsoring this video in this design process. And that is 21st Dev, and it is also Mobbin. So, I got a subscription to each of these. When you give it the MCP access, it can then query 21st.dev and try to fi..."

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