Images account for over 60% of the bytes on an average webpage. Optimizing them is the #1 way to improve performance.
Next-Gen Formats
JPEG and PNG are ubiquitous, but formats like WebP and AVIF provide vastly superior compression. WebP is typically 30% smaller than a comparable JPEG.
Sizing and Compression
Always resize images to their maximum display size. Never send a 4000px wide photo to a mobile phone that only needs 400px. Compression algorithms can also strip EXIF metadata and apply lossy compression to save massive amounts of space.
Lazy Loading
Use loading="lazy" on your image tags. This tells the browser to defer loading the image until it's actually about to scroll into the viewport!
Start optimizing today using the UtilX Image Converter.