Image Optimization Best Practices for 2024
By Mohammad Ameer
August 14, 2025
326 views
images, optimization, webp, avif, performance
Image optimization has evolved significantly in 2024. Here are the best practices you should implement:
**Modern Image Formats**
WebP and AVIF formats offer superior compression compared to traditional JPEG and PNG. WebP provides 25-35% better compression, while AVIF can achieve up to 50% smaller file sizes.
**Responsive Images**
Use the srcset attribute and picture element to serve different image sizes based on device capabilities and screen resolutions.
**Compression Tools**
Leverage tools like TinyPNG, ImageOptim, or Squoosh for lossless compression. For automated workflows, consider using imagemin or sharp.
**Critical Image Loading**
Prioritize above-the-fold images and use lazy loading for images below the fold. This improves perceived performance significantly.
**Image CDNs**
Services like Cloudinary, ImageKit, or Fastly provide automatic optimization, format conversion, and global delivery.
**Performance Monitoring**
Regularly audit your images using tools like Google PageSpeed Insights or WebPageTest to identify optimization opportunities.
**Alt Text and SEO**
Don't forget accessibility and SEO. Provide descriptive alt text for all images to improve both user experience and search rankings.
By following these practices, you'll ensure your images contribute positively to your website's performance and user experience.
**Modern Image Formats**
WebP and AVIF formats offer superior compression compared to traditional JPEG and PNG. WebP provides 25-35% better compression, while AVIF can achieve up to 50% smaller file sizes.
**Responsive Images**
Use the srcset attribute and picture element to serve different image sizes based on device capabilities and screen resolutions.
**Compression Tools**
Leverage tools like TinyPNG, ImageOptim, or Squoosh for lossless compression. For automated workflows, consider using imagemin or sharp.
**Critical Image Loading**
Prioritize above-the-fold images and use lazy loading for images below the fold. This improves perceived performance significantly.
**Image CDNs**
Services like Cloudinary, ImageKit, or Fastly provide automatic optimization, format conversion, and global delivery.
**Performance Monitoring**
Regularly audit your images using tools like Google PageSpeed Insights or WebPageTest to identify optimization opportunities.
**Alt Text and SEO**
Don't forget accessibility and SEO. Provide descriptive alt text for all images to improve both user experience and search rankings.
By following these practices, you'll ensure your images contribute positively to your website's performance and user experience.