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The second document has a link to a benchmark [1] by peazip which shows that 7zip is by far the best when you have a bit of time to compress (241s) but its the fastest at decompression and has the best ratio. Interesting. How is the support in languages? Are browsers planning to implement it as well?

https://peazip.github.io/fast-compression-benchmark-brotli-z...

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7z is an archive format, it just uses LZMA2 compression I believe.

Well it's also an LZMA implementation, and an implementation can be fast or slow, good or bad.

From what I gather 7zip tends to be quite a bit faster than xz, since it's been worked on/optimized quite a bit more (I didn't test this myself to verify, but I've seen several people comment on that over the last few years).

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