21st.dev

In plain words

21st.dev is a marketplace of UI elements designed for developers building AI websites. Users can browse and copy-paste components from professional design engineers directly into development platforms like v0, Cursor, Bolt, Lovable, and Replit. The platform combines design inspiration with practical code, featuring contributions from over 50 pro design engineers. It also allows developers to publish and share their own design engineering work.

written from the facts on this page · September 2026

From the sources

Make your AI websites look professional & beautiful. Copy-paste UI into v0, Cursor, Bolt, Lovable, Replit from the largest marketplace of UI elements. Get inspired by 50+ pro design engineers. Publish your design engineering work

• 
  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

• 
  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 20d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

• 
  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

• 
  Nuphos▲380

  The AI-Native DevOps Workspace.

  Dev tools · 24d ago · nuphos.ai

• 
  Lettertrace▲375

  Track your AI visibility for free (using your own API keys!)

  Dev tools · 25d ago · lettertrace.com

• IM
  I made an open-source laptop from scratch▲3,237

  Hello! I'm Byran. I spent the past ~6 months engineering a laptop from scratch. It's fully open-source on GH at: https://github.com/Hello9999901/laptop

  Dev tools · 2025 · byran.ee

• TI
  Tetris in a PDF▲1,289

  I realized that the PDF engines of modern desktop browsers (PDFium and PDF.js) support JavaScript with enough I/O primitives to make a basic game like Tetris. It was a bit tricky to find a union of features that work in both engines, but in the end it turns out that showing/hiding annotation "fields" works well to make monochrome pixels, and keyboard input can be achieved by typing in a text input box. All in all it's quite janky but a nice reminder of how general purpose PDF scripting can be. The linked PDF is all ASCII so you can just open it in a text editor, or have a look at…

  Life & fun · 2025 · th0mas.nl

• 
  Raycast Focus▲990

  Stay in flow by blocking distracting apps and websites

  Work · 2025 · raycast.com

• 
  JoggAI 2.0: AI Avatar Generator▲967

  Create lifelike, personalized AI avatars from text prompts

  AI · 2025 · jogg.ai

• 
  Lovable + Builder.io▲873

  Turn Figma designs into full stack apps with AI

  Dev tools · 2025 · figma.com

• CC
  Cs16.css – CSS library based on Counter Strike 1.6 UI▲819

  Life & fun · 2025 · cs16.samke.me