Compress Images for Website to Speed Up Load
Overview
Google PageSpeed and Core Web Vitals penalize pages with unoptimized images. A 3MB hero image delays Largest Contentful Paint past Google's 2.5-second target. Compressing to under 150KB at the right display size is the single most impactful page speed optimization for most sites.
How to Use This Tool
Upload your image. Set the width to match the largest display size on your site (1200px for hero images, 400px for thumbnails). Choose 80% quality. Click Compress. The output should be under 150KB for most photos.
Ready to get started? It's free, no registration required, and your files never leave your device.
PDF Tool →Frequently Asked Questions
What is the recommended image size for web pages?
Hero images: under 200KB at 1200-1920px wide. Blog post images: under 150KB at 800px wide. Product thumbnails: under 50KB at 400px wide. Profile photos: under 30KB at 200px wide.
Should I use JPG or WebP for website images?
WebP files are 25-35% smaller than JPG at equivalent quality and are supported by 97% of browsers as of 2026. Use WebP as the primary format with JPG fallback for older browsers via the HTML picture element.
How much does image compression improve page speed?
Images typically account for 60-70% of total page weight on image-heavy sites. Reducing image sizes by 50% can cut total page weight by 30-40%, often improving Time to First Byte and Largest Contentful Paint by 0.5-2 seconds.