I published a new library called ThumbHash, which generates very compact image representations for image placeholders. There's more info on the website: <https://evanw.github.io/thumbhash/>

It's inspired by BlurHash but does some things a little differently (e.g. supports alpha, uses binary instead of ASCII, separates luma and chroma).

Big thanks to [@WAHa_06x36](https://mastodon.social/@WAHa_06x36) for the original BlurHash concept and implementation.