Google’s new Brotli compression algorithm is 26 percent better than existing solutions

Google is introducing a new compression algorithm named Brotli, which it says can reduce file sizes up to 26 percent over existing solutions. The increased density is achieved by “a 2nd order context modeling, re-use of entropy codes, larger memory window of past data and joint distribution codes.” Its current compression algorithm, Zopfli, isn’t being buried (yet, at least). Google notes Zopfli is already in use across various compression solutions, so shuttering it won’t happen straight away. Brotli — Swiss-German for ‘small bread’ — is a big deal. It’s not an iterative deflate-compatible engine, but a whole new data format.…

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