Preview any URL on mobile, tablet, desktop simultaneously.
📱 Mobile (375×667)
📲 Tablet (768×1024)
🖥️ Desktop (1440×900)
FAQ
Some sites won't load?
Sites with X-Frame-Options: DENY (Google, GitHub) block iframe embedding.
True mobile rendering?
iframe simulates dimensions only; real mobile uses different user-agent. Use Chrome DevTools for accurate testing.
Server upload?
No, all client-side.
Free?
Yes.