| Boot |
42287 bytes (41.3k)
|
CDN |
| Baidu |
37357 bytes (36.5k)
|
CDN |
| cdnjs |
37245 bytes (36.4k)
|
CDN |
| gzip -6 (default) |
37035 bytes (36.2k)
|
local copy |
|
36974 bytes (36.1k)
|
CDN | |
| Yandex |
36958 bytes (36.1k)
|
CDN |
| gzip -9 |
36954 bytes (36.1k)
|
local copy |
| libdeflate -12 |
35866 bytes (35.0k)
|
local copy |
| 7zip -mx=9 -tgzip |
35852 bytes (35.0k)
|
local copy |
| kzip -s0 -rn -b1 |
35840 bytes (35.0k)
|
local copy |
| zultra |
35835 bytes (35.0k)
|
local copy |
| pigz -11 -n |
35778 bytes (34.9k)
|
local copy |
| Zopfli |
35755 bytes (34.9k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 100000 | --i100000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 128 | --mls128 |
| block splitting recursion | 18 | --bsr18 |
| lazy matching in LZ77 | yes | --lazy |
| optimized Huffman headers | yes | --ohh |
| initial random W for iterations | 1 | --rw1 |
| initial random Z for iterations | 2 | --rz2 |
| CDN | Size (compressed) | MD5 (uncompressed) | Timestamp |
|---|---|---|---|
| Boot | 42287 bytes | ca6ed1b3aec3ddb6eb72f1fe9d77f0be | March 18, 2015 @ 10:23 |
| cdnjs | 37245 bytes | ca6ed1b3aec3ddb6eb72f1fe9d77f0be | March 28, 2014 @ 15:15 |
| 36974 bytes | ca6ed1b3aec3ddb6eb72f1fe9d77f0be | February 3, 2014 @ 18:58 | |
| Yandex | 36958 bytes | ca6ed1b3aec3ddb6eb72f1fe9d77f0be | June 11, 2015 @ 14:17 |
| CDN | Size (compressed) | MD5 (uncompressed) | Comment / Diff | Timestamp |
|---|---|---|---|---|
| Baidu | 37357 bytes | b9dee7611740e6806989d4f905f45c2a | only whitespaces differ | June 5, 2014 @ 10:05 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 35755 bytes | -5 bytes | zopfli --i100000 --mls128 --bsr18 --lazy --ohh | November 27, 2015 @ 17:06 |
| 35760 bytes | -1 byte | zopfli --i10000 --mls128 --bsr18 --lazy --ohh | October 14, 2015 @ 07:33 |
| 35761 bytes | -2 bytes | zopfli --i10000 --mls8192 --bsr11 --lazy --ohh | September 9, 2015 @ 21:33 |
| 35763 bytes | -6 bytes | zopfli --i1000 --mls8192 --bsr11 --lazy --ohh | September 7, 2015 @ 20:32 |
| 35769 bytes | -2 bytes | zopfli --i1000 --mls2048 --bsr2 --lazy --ohh | September 7, 2015 @ 20:29 |
| 35771 bytes | – | zopfli --i100 --mls8192 --bsr11 --lazy --ohh | September 7, 2015 @ 16:29 |
| 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512 | 1024 | 2048 | 4096 | 8192 | 16384 | 32768 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512 | 1024 | 2048 | 4096 | 8192 | 16384 | 32768 | |
| 2 | 35795 | 35789 | 35796 | 35778 | 35774 | 35796 | 35795 | 35772 | 35798 | 35772 | 35768 | 35775 | 35768 | 35782 | 35770 |
| 4 | 35777 | 35768 | 35766 | 35774 | 35773 | 35773 | 35777 | 35776 | 35796 | 35788 | 35789 | 35771 | 35789 | 35798 | 35769 |
| 6 | 35778 | 35778 | 35778 | 35773 | 35779 | 35778 | 35778 | 35781 | 35795 | 35780 | 35775 | 35775 | 35771 | 35769 | 35771 |
| 7 | 35794 | 35776 | 35794 | 35794 | 35794 | 35795 | 35777 | 35792 | 35797 | 35769 | 35773 | 35772 | 35773 | 35766 | 35766 |
| 8 | 35768 | 35775 | 35776 | 35773 | 35774 | 35777 | 35777 | 35776 | 35791 | 35770 | 35792 | 35775 | 35771 | 35765 | 35762 |
| 9 | 35769 | 35770 | 35776 | 35770 | 35774 | 35768 | 35777 | 35775 | 35796 | 35775 | 35787 | 35774 | 35772 | 35768 | 35763 |
| 10 | 35774 | 35775 | 35775 | 35776 | 35771 | 35795 | 35794 | 35771 | 35792 | 35789 | 35787 | 35775 | 35785 | 35766 | 35764 |
| 11 | 35775 | 35770 | 35774 | 35795 | 35774 | 35794 | 35775 | 35772 | 35798 | 35769 | 35774 | 35767 | 35761 | 35767 | 35764 |
| 12 | 35776 | 35776 | 35776 | 35776 | 35777 | 35769 | 35774 | 35774 | 35790 | 35771 | 35774 | 35775 | 35777 | 35769 | 35762 |
| 13 | 35773 | 35777 | 35776 | 35777 | 35776 | 35770 | 35776 | 35776 | 35797 | 35769 | 35773 | 35769 | 35772 | 35766 | 35762 |
| 14 | 35773 | 35774 | 35775 | 35794 | 35776 | 35772 | 35776 | 35785 | 35790 | 35790 | 35789 | 35798 | 35767 | 35768 | 35790 |
| 15 | 35775 | 35775 | 35777 | 35775 | 35774 | 35778 | 35777 | 35770 | 35774 | 35769 | 35788 | 35775 | 35773 | 35763 | 35766 |
| 16 | 35774 | 35774 | 35765 | 35773 | 35774 | 35794 | 35772 | 35771 | 35797 | 35770 | 35769 | 35767 | 35773 | 35767 | 35763 |
| 17 | 35777 | 35777 | 35776 | 35777 | 35773 | 35794 | 35794 | 35794 | 35793 | 35770 | 35771 | 35773 | 35775 | 35767 | 35763 |
| 18 | 35769 | 35769 | 35767 | 35774 | 35774 | 35774 | 35755 | 35776 | 35797 | 35791 | 35795 | 35775 | 35772 | 35761 | 35763 |
| 19 | 35769 | 35771 | 35777 | 35776 | 35774 | 35768 | 35775 | 35774 | 35767 | 35767 | 35787 | 35774 | 35785 | 35794 | 35766 |
| 20 | 35774 | 35769 | 35776 | 35776 | 35774 | 35794 | 35777 | 35777 | 35798 | 35768 | 35775 | 35783 | 35769 | 35761 | 35762 |
| 21 | 35775 | 35773 | 35776 | 35775 | 35774 | 35794 | 35773 | 35772 | 35794 | 35769 | 35787 | 35787 | 35773 | 35769 | 35762 |
| 22 | 35773 | 35773 | 35766 | 35774 | 35773 | 35773 | 35777 | 35795 | 35793 | 35786 | 35792 | 35774 | 35768 | 35767 | 35764 |
| 23 | 35777 | 35774 | 35775 | 35795 | 35775 | 35795 | 35774 | 35779 | 35774 | 35768 | 35774 | 35774 | 35769 | 35769 | 35777 |
| 25 | 35774 | 35775 | 35776 | 35775 | 35776 | 35776 | 35775 | 35797 | 35796 | 35776 | 35774 | 35781 | 35768 | 35767 | 35761 |
| 30 | 35777 | 35773 | 35777 | 35774 | 35774 | 35776 | 35776 | 35775 | 35766 | 35770 | 35774 | 35783 | 35769 | 35766 | 35761 |
| 40 | 35775 | 35775 | 35777 | 35774 | 35774 | 35766 | 35778 | 35777 | 35795 | 35769 | 35773 | 35769 | 35769 | 35765 | 35763 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 35768 bytes | – | 100% |
| 1,000 | 35762 bytes | -6 bytes | 100% |
| 10,000 | 35760 bytes | -2 bytes | 100% |
| 100,000 | 35755 bytes | -5 bytes | 0.29% |
| 1,000,000 | – | – | – |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 35842 bytes | +87 bytes (+0.24%) | +2 bytes |
| 1 | 35840 bytes | +85 bytes (+0.24%) | – |
| 2 | 35865 bytes | +110 bytes (+0.31%) | +25 bytes |
| 3 | 35892 bytes | +137 bytes (+0.38%) | +52 bytes |
| 4 | 35927 bytes | +172 bytes (+0.48%) | +87 bytes |
| 5 | 35942 bytes | +187 bytes (+0.52%) | +102 bytes |
| 6 | 35902 bytes | +147 bytes (+0.41%) | +62 bytes |
| 7 | 35925 bytes | +170 bytes (+0.48%) | +85 bytes |
| 8 | 35952 bytes | +197 bytes (+0.55%) | +112 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 29128 bytes | -6627 bytes (-18.53%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 30186 bytes | -5569 bytes (-15.58%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 31394 bytes | -4361 bytes (-12.20%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 32902 bytes | -2853 bytes (-7.98%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 33900 bytes | -1855 bytes (-5.19%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 34276 bytes | -1479 bytes (-4.14%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 35123 bytes | -632 bytes (-1.77%) |