Image format choice by content type: JPEG vs WebP vs AVIF vs HEIC for photos, illustrations, and UI screenshots
Picking an image format isn''t just "smallest wins." JPEG, WebP, AVIF, and HEIC all behave differently on the same image — photos, flat illustrations, screenshots, and PNG-replacement transparency each have a best fit. This article compares encoding behavior, perceptual outcomes, and `<picture>` patterns.
· 5 min read