Free Lazy Loading Script Generator for Faster Pages
Tell us which images and iframes to defer and get a copy-paste lazy loading script in seconds. Lighter pages, faster loads, better Core Web Vitals.
Free with a Brainito account. No credit card required.
Copy Paste Ready Code
Get a clean, dependency-free snippet with native lazy loading and an IntersectionObserver fallback built in.
Faster Core Web Vitals
Deferring offscreen images and iframes cuts page weight and improves LCP, a key ranking signal in 2026.
Works on Any Site
Paste the script into WordPress, Shopify, Webflow, or plain HTML. No plugins, libraries, or build steps required.
Frequently Asked Questions
What does the lazy loading script actually do?
It delays loading of images and iframes until they are about to enter the viewport. The generated snippet uses the browser's native loading attribute where supported and an IntersectionObserver fallback, so content loads only when needed.
Is the Lazy Loading Script Generator free to use?
Yes. Every script you generate is free once you sign up, with no credit card required. You can create scripts for as many pages or projects as you like and copy the code straight into your site.
Will lazy loading hurt my SEO or hide content from Google?
No, when implemented correctly. Google recommends lazy loading offscreen media, and the generated script keeps images in your HTML so crawlers can still find them. Just avoid lazy loading above-the-fold images like your hero banner.
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