Free Image Compressor for Web Developers
Optimize images for Core Web Vitals and Lighthouse scores. Batch compress, convert to WebP, and hit performance targets. Free tool for developers.
Google's Core Web Vitals directly impact search rankings, and LCP (Largest Contentful Paint) is often determined by your largest image. Web developers need systematic image optimization — not just one-off compression, but a pipeline that consistently delivers fast-loading, visually sharp images across every page.
Tips for Web Development
Target LCP under 2.5 seconds — the hero image is usually the LCP element, so compress it aggressively
Convert to WebP with AVIF fallback — WebP saves 25-34% over JPEG, AVIF saves 50%
Implement responsive images with width descriptors (srcset) to serve appropriate sizes per viewport
Use a build-time compression pipeline (Sharp, imagemin) to automate optimization in CI/CD
Try This Example
“Compress all images in my Next.js project to WebP format with a max width of 1920px and quality 80”