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Google Unveils "Zopfli" Compression Algorithm

Google

Published on 01 March 2013 01:56 PM EST
Written by Michael Larabel in Google
9 Comments

Google has announced Zopfli, a new general purpose data compression library that's open-source. Zopfli implements the Deflate compression algorithm that yields a smaller output size than previous techniques.

While it's higher data density with Zopfli, Google claims that only the compression speed of this new method is slower but that file decompression speeds are unaffected. While the compression is "a lot slower", Zopfli is said to be 3~8% smaller than Zlib at maximum compression.

Another limitation that may prevent some areas where Zopfli is worthwhile is that aside from the much longer compression time, it usues about 2~3x more CPU time than zlib. Google engineers recommend Zopfli for cases like sending static content over the network. More details on Zopfli compression can be found via the Google Open-Source Blog.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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