Convert PNG to AVIF

Converting PNG to AVIF is worth doing when the destination matters more than the source. PNG is built for screenshots, logos and anything needing sharp edges or transparency. AVIF is built for the smallest modern web images, at the cost of slower encoding. Which one you want depends entirely on where the image is going next.

AVIF keeps the alpha channel and compresses harder still than WebP, so a transparent PNG can shrink dramatically. It is the strongest option for web delivery of images with transparency, provided the audience is on current browsers.

AVIF compresses by discarding detail, so this conversion trades some fidelity for a much smaller file. At high quality settings the difference is invisible in photographs, though flat colour and sharp text can show artefacts. Keep the PNG original as your master copy.

AVIF compresses harder than anything else here, so coming from a lossless source the reduction can be dramatic. The cost is encoding time and narrow support. Use it for web delivery, and keep the lossless original as your master rather than treating the AVIF as an archive copy.

PNG decodes exactly, since nothing was discarded when it was written. What the encoder receives is the original pixel data, which means the quality of the result depends entirely on the target format and settings rather than on anything lost on the way in.

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