Compress HEIC Images for Wix
Wix automatically processes and serves images through its CDN, but uploading pre-optimized images still improves initial load times and ensures the best quality baseline. High Efficiency Image Format — the default photo format on iPhones and modern Apple devices. Excellent compression. Use ImageSmith to compress your HEIC images to the ideal file size for Wix — target under 25,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
25,000KB
Dimensions
2500px maximum width — Wix resizes automatically
✓Wix serves images via its CDN and applies automatic optimization
✓Upload at 2× the display size for crisp Retina/HiDPI display
✓PNG for images with transparency, JPEG for photographs
✓Wix converts uploads to WebP automatically for modern browsers