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BEST IMAGE FORMAT FOR WEBSITES: JPG, PNG, WEBP OR AVIF?
The best format depends on the job. JPG still works for some photos, PNG is useful when transparency matters, and modern formats like WebP and AVIF are better for most web publishing workflows.
JPG and PNG
They are familiar and widely supported, but they are often heavier than necessary for the public web.
WebP and AVIF
These formats are designed for modern browsers and usually give better file size savings for the same visual quality.
How FlexiWebP fits in
FlexiWebP makes format selection simple on macOS, so you can pick the output that makes sense for the page instead of guessing.
Rule of thumb
Choose WebP for a dependable default, AVIF for maximum compression, and keep JPG or PNG only when there is a specific reason.