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The most aggressive compression currently available on the web, with transparency intact — typically half the size of an equivalent WebP.
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AVIF is built on the AV1 video codec and consistently produces the smallest files of any widely-supported web image format — commonly 50% below JPG and meaningfully below WebP at matched quality, with full alpha transparency retained. For a graphics-heavy landing page the bandwidth difference is substantial. The trade-offs are real though: encoding is computationally heavy, so expect the conversion to take a few seconds on large images, and browser support, while good in Chrome, Edge and Firefox, is more recent than WebP's. The usual production pattern is a `<picture>` element offering AVIF first with a WebP or PNG fallback beneath it. Convert from your original PNG rather than from an already-compressed intermediate to get the cleanest result.
Usually yes — often around half the size at comparable visual quality, with the largest gains on photographic and richly detailed images.
Yes, AVIF carries a full alpha channel, so PNG transparency converts across cleanly.
Chrome, Edge, Firefox, Opera and Safari all support AVIF in current versions. Serve it inside a <picture> element with a WebP or PNG fallback for maximum reach.
Some browsers can display AVIF but not encode it. If you see an encoding notice, use Chrome or Edge, or choose WebP for similar savings.
AVIF uses AV1 video compression, which is far more computationally intensive than JPG or PNG encoding. The extra seconds buy substantially smaller files.
It's free, private and works right in your browser — no signup, no watermark.