Large PNG/JPG/WebP files are one of the main reasons for slow LCP (Largest Contentful Paint). Optimize your images, reduce file size by up to 80% and make your pages feel instant.
No signup required to test. Upgrade only if it works for you.
When your hero image or above-the-fold banners are too heavy, browsers take longer to decode and paint them. This directly hurts your LCP and can drop your SEO rankings and conversions.
Before
Hero image: 1.2 MB
LCP: ~3.4s on mobile
After
Optimized: 240 KB
LCP: ~1.4s on mobile
Example based on real-world optimization ranges. Results vary by network and layout.
Upload the same images that appear above the fold in your layout (hero, banner, product image, background). We'll keep the format you prefer and aggressively reduce file size while preserving visual quality.
Just drop your images below – upload, optimization and ZIP download run automatically.
Drag & drop images or click
Multiple files supported • Accepted: image/*,.png,.jpg,.jpeg,.webp,.avif • Up to 2 MB • Max. 5 file(s)
Tip: start with the main hero image used in your landing page or above-the-fold section. That element usually defines your LCP.
LCP is one of the main Core Web Vitals used by Google. When your LCP is slow, users feel your site is “heavy” and tend to bounce before interacting. Optimized images help your layout paint faster, especially on mobile devices and slow connections.
FastLoadImg was designed to plug into modern stacks like Next.js, React, static sites and traditional e-commerce. Use it to prepare assets before deployment, improve your CI pipeline or quickly fix a slow lighthouse report.
Start with images that appear above the fold: hero sections, banners, main product images or large backgrounds. These elements usually define your LCP.
Yes. Reducing image size directly improves LCP and can also help with Total Blocking Time (TBT) and CLS when combined with proper layout techniques.
Yes. You can optimize a limited number of images for free every month. When you hit the limit, you can upgrade to a paid plan to keep using it without restrictions.
Convert and compress images using AVIF, WebP, JPEG, PNG and JPG. Choose the converter that best fits your use case and improve your Core Web Vitals.