Compress AVIF Images for WordPress
Optimizing images before uploading to WordPress dramatically improves page load speed, Core Web Vitals scores, and SEO rankings. WordPress 5.8+ natively supports WebP. Next-generation image format based on the AV1 video codec. Offers superior compression to both WebP and JPEG. Use ImageSmith to compress your AVIF images to the ideal file size for WordPress — target under 500KB for optimal performance. Processing is fully browser-based — no server uploads.
Recommended format
WebP
Max file size
500KB
Dimensions
Max 1200px wide — WordPress generates thumbnails automatically
✓Target under 200KB per image for optimal page speed scores
✓Use WebP format — WordPress 5.8+ supports it natively
✓Regenerate thumbnails after bulk uploading pre-optimized images
✓Install a lazy-loading plugin to defer off-screen image loading
Compress AVIF for Other Platforms
Compress AVIF for WordPress — FAQ
WordPress works best with images under 500KB. Recommended dimensions: Max 1200px wide — WordPress generates thumbnails automatically. ImageSmith can compress AVIF images to any target size in seconds.
Yes — WordPress supports AVIF. Recommended format: WebP.
Upload your AVIF image to ImageSmith, set a target size under 500KB, and compress. Target under 200KB per image for optimal page speed scores
Download your images, compress them with ImageSmith targeting under 200KB per image, then upload to WordPress. Use WebP format for maximum compression with best quality.
WebP is the best format for WordPress 5.8 and later. It offers 25–35% smaller file sizes than JPEG with comparable quality. JPEG remains the best choice for older WordPress installations.