Gzip::Zopfli - another compression module
Following on from the Gzip::Libdeflate I mentioned before, I also made this: Gzip::Zopfli
It is based on the Zopfli gzip compression library from Google Research.
Both Zopfli and libdeflate seem to excel at compressing JSON files compared to the ordinary zlib compression, sometimes with an improvement of up to 30%. Zopfli usually wins by a small margin over libdeflate. Here are some results of this script on random JSON files:
6194 698 703 682 3809 1184 977 953 1446 494 486 485 1572152 824430 710102 707844 28061 5080 4554 4546 565082 125097 118708 118494 317448 164741 140087 139829 2069690 1062866 865985 866129 565082 125097 118708 118494
On the left is the uncompressed size, then gzip -9, libdeflate, and zopfli number of bytes.
Zopfli almost always wins by a small margin over libdeflate.
People who want to try comparing the three things might find this repository useful:
At the time of publishing this blog post, the scripts will require a little editing to work.
Perl user since about 2006, I have also released some CPAN modules.
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