Writing · 2026-05-11
Why ImageOptim never added WebP, AVIF, or JPEG XL
The free Mac image optimizer everyone uses has been stuck at JPEG and PNG for years. Here is the history, and what to use instead.
ImageOptim has been the default Mac image optimizer for over a decade. It is free, open source, and good at what it does. But what it does has not changed since roughly 2014. JPEG, PNG, GIF, and SVG. No WebP. No AVIF. No JPEG XL. No HEIC.
This post looks at why the format gap exists and lists three concrete alternatives that ship the modern formats today.
(Full post coming soon.)
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