this post was submitted on 11 Nov 2023
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[–] wax@lemmy.wtf 41 points 2 years ago* (last edited 2 years ago) (3 children)

I've personally used webp for when I need lossy compression with alpha channel. What good alternatives are there? Png is not lossy and jpeg does not support alpha. Is JXL better than WebP? AVIF? JPEG2000?

[–] ilinamorato@lemmy.world 15 points 2 years ago* (last edited 2 years ago)

pngout can often get image sizes down below equivalent jpeg without quality loss. And it's not a new format, just optimizing the existing png file.

[–] rasensprenger@feddit.de 2 points 2 years ago

JXL is nice, but lacks support as well

[–] Stumblinbear@pawb.social 2 points 2 years ago

WebP is also great for doing animations with transparency on mobile. Transparent video is barely supported and gif is terrible. WebP is really the only option