LightfieldAI-native CRM that builds itself and does work for you
Promoted
Launched this week
Responsive Tool
Test your site on phone, tablet & desktop side by side, free
2 followers
Test your site on phone, tablet & desktop side by side, free
2 followers
Responsive Tool shows your site on mobile, tablet, and desktop at once — free, no signup, no download. Paste any URL, see it across real device viewports side by side. Swap any pane's device, enter custom widths, refresh one viewport after a code change, or share your setup via URL. Built with Next.js 16, React 19, Tailwind v4, on Cloudflare Workers. Includes reference pages for device viewport sizes and CSS breakpoints.
Hey! I'm Faizan, a frontend developer. I built this because I was tired of toggling one device at a time in Chrome DevTools responsive mode.
Paste a URL, see phone, tablet, and desktop layouts at once. Swap any pane's device or enter a custom width. Share the URL and a teammate sees your exact setup.
One thing I found building this: 93% of dev portfolio sites load fine in iframes, but only 44% of marketing sites do — most block via X-Frame-Options. Working on a solution for that next.
Also planning: more device presets, screenshot export.
100% free, no signup, no tracking. Would love your feedback!