Guides · 8pt vs 21st.dev
Guides
8pt vs 21st.dev
By 8pt · Updated
Both are UI libraries for AI coding tools, and both offer live previews, copyable prompts, a CLI and MCP. The main difference: 21st.dev is a community marketplace with a large catalog of React + Tailwind components; 8pt’s components, page templates, themes, icons and Skills are all made by 8pt, and components are native HTML/CSS/JS that the model adapts to any framework.
#The differences in one table
| 8pt | 21st.dev | |
|---|---|---|
| Interface language | English and Chinese | English |
| Where items come from | Made by 8pt (components, templates, themes, icons and Skills all come from one design system) | Published by community design engineers, each component credited to its author |
| Component tech | Native HTML, CSS and a little JS; the prompt has the model rewrite it for your project’s framework | React + Tailwind CSS, following shadcn/ui conventions |
| Catalog size | 137 components, 14 page templates, 17 themes, 187 icons, 6 Skills (as of 2026-11-14) | Its site lists 12,000+ components, 362 templates and 991 themes (pricing page viewed 2026-11-14) |
| Skill | Skill library: landing pages, packaging design, slide decks, short video scripts and other professional workflows | 21st skills for agents (npx @21st-dev/cli install-skill) |
| CLI | npm i -g @8pt-dev/cli, command 8pt | npm i -g @21st-dev/cli, command 21st |
| MCP | https://8pt.dev/api/mcp | https://21st.dev/api/mcp |
| Without a subscription | Log in to browse everything with live previews; copying and installing need Builder | Accounts without a subscription can copy 2 components a day |
| Individual plan pricing | Builder $9/mo, $25/quarter, $75/year; Founding Lifetime $179 (limited to 100 seats) | Builder billed yearly works out to $6/mo ($72/year); Builder + AI and Team also available |
| AI Generate | 8pt AI Coming soon | Available in 21st AI, uses AI credits |
21st.dev details come from its websitepricing page andCLI and MCP page; check its website for the latest.
#When to pick 21st.dev
Your project is React + Tailwind and already uses shadcn/ui, you want to choose from a large pool of community authors, or you need its AI generation and design review features.
#When to pick 8pt
Your project isn’t necessarily React (Vue, Svelte or plain HTML all work); you want components, templates, themes and icons in one consistent style; and you want Skills that make the model deliver full pages, packaging, slide decks and more to a professional process.
#Can you use both
Yes. Both hand the source to your project, so neither locks you in. Mixing several styles on one page can clash, though, so fix your tokens with one theme first and have the model wire every component to it.
#FAQ
Is there a Chinese-language alternative to 21st.dev?
Yes, 8pt has a full Chinese interface (and this English one), with live previews, copyable prompts, a CLI and MCP; components are native HTML/CSS/JS.
Can I connect 8pt and 21st.dev MCP at the same time?
Yes. They are separate MCP servers, so add each under its own name in your client config and the model calls the right tools for what you ask.
Can I use 8pt components in a React project?
Yes. Hand the copied prompt to your model and it rewrites the component as a TypeScript function component for your project and wires the colors to your design tokens.