Compress BMP Images for websites
Web image optimization is one of the highest-impact improvements for site speed, Google Core Web Vitals scores, and organic SEO rankings. Uncompressed Windows bitmap format with very large file sizes. Not suitable for web use without compression. Use ImageSmith to compress your BMP images to the ideal file size for websites — target under 200KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
WebP
Max file size
200KB
Dimensions
Match display dimensions — use responsive images with srcset
✓Target under 200KB for hero/banner images, under 100KB for thumbnails
✓Use WebP or AVIF for the best compression-to-quality ratio
✓Implement lazy loading: add loading="lazy" to non-critical images
✓Use Next.js Image component or similar for automatic optimization