| Boot |
60288 bytes (58.9k)
|
CDN |
| cdnjs |
52876 bytes (51.6k)
|
CDN |
| gzip -6 (default) |
52540 bytes (51.3k)
|
local copy |
| unpkg |
52530 bytes (51.3k)
|
CDN |
|
52474 bytes (51.2k)
|
CDN | |
| gzip -9 |
52443 bytes (51.2k)
|
local copy |
| jsdelivr |
52422 bytes (51.2k)
|
CDN |
| libdeflate -12 |
50847 bytes (49.7k)
|
local copy |
| 7zip -mx=9 -tgzip |
50813 bytes (49.6k)
|
local copy |
| kzip -s0 -rn -b1 |
50791 bytes (49.6k)
|
local copy |
| pigz -11 -n |
50749 bytes (49.6k)
|
local copy |
| zultra |
50743 bytes (49.6k)
|
local copy |
| Zopfli |
50660 bytes (49.5k)
|
local copy |
| Zopfli (defluff) |
50658 bytes (49.5k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 1000000 | --i1000000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 16384 | --mls16384 |
| block splitting recursion | 23 | --bsr23 |
| 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 | 60288 bytes | 338db4826dcbc337102c071a5eb93a21 | October 9, 2015 @ 22:38 |
| cdnjs | 52876 bytes | 338db4826dcbc337102c071a5eb93a21 | (invalid) |
| unpkg | 52530 bytes | 338db4826dcbc337102c071a5eb93a21 | July 11, 2016 @ 15:52 |
| 52474 bytes | 338db4826dcbc337102c071a5eb93a21 | (invalid) | |
| jsdelivr | 52422 bytes | 338db4826dcbc337102c071a5eb93a21 | October 30, 2015 @ 11:53 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 50660 bytes | -1 byte | zopfli --i1000000 --mls16384 --bsr23 --lazy --ohh | November 11, 2015 @ 18:13 |
| 50661 bytes | -2 bytes | zopfli --i1000000 --mls16384 --bsr20 --lazy --ohh | October 21, 2015 @ 23:56 |
| 50663 bytes | -2 bytes | zopfli --i100000 --mls16384 --bsr20 --lazy --ohh | October 2, 2015 @ 11:49 |
| 50665 bytes | -4 bytes | zopfli --i10000 --mls16384 --bsr20 --lazy --ohh | October 2, 2015 @ 08:32 |
| 50669 bytes | -13 bytes | zopfli --i1000 --mls16384 --bsr20 --lazy --ohh | October 2, 2015 @ 07:22 |
| 50682 bytes | – | zopfli --i100 --mls16384 --bsr20 --lazy --ohh | October 2, 2015 @ 07:20 |
| 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 | 50727 | 50729 | 50727 | 50728 | 50728 | 50728 | 50729 | 50730 | 50731 | 50724 | 50734 | 50732 | 50731 | 50699 | 50728 |
| 4 | 50710 | 50708 | 50721 | 50704 | 50706 | 50710 | 50692 | 50700 | 50704 | 50707 | 50702 | 50710 | 50710 | 50681 | 50715 |
| 6 | 50713 | 50717 | 50712 | 50713 | 50706 | 50692 | 50695 | 50694 | 50696 | 50711 | 50713 | 50698 | 50697 | 50710 | 50700 |
| 7 | 50709 | 50722 | 50698 | 50716 | 50712 | 50694 | 50711 | 50712 | 50713 | 50716 | 50696 | 50697 | 50698 | 50715 | 50711 |
| 8 | 50717 | 50722 | 50708 | 50711 | 50714 | 50707 | 50692 | 50716 | 50696 | 50708 | 50696 | 50712 | 50718 | 50681 | 50701 |
| 9 | 50710 | 50715 | 50692 | 50718 | 50691 | 50691 | 50690 | 50691 | 50707 | 50691 | 50702 | 50695 | 50697 | 50691 | 50714 |
| 10 | 50717 | 50689 | 50697 | 50721 | 50715 | 50690 | 50692 | 50685 | 50691 | 50690 | 50704 | 50698 | 50696 | 50683 | 50714 |
| 11 | 50715 | 50718 | 50672 | 50698 | 50710 | 50689 | 50690 | 50683 | 50697 | 50690 | 50703 | 50697 | 50697 | 50664 | 50711 |
| 12 | 50674 | 50686 | 50695 | 50690 | 50703 | 50691 | 50692 | 50683 | 50696 | 50699 | 50691 | 50696 | 50697 | 50664 | 50715 |
| 13 | 50725 | 50719 | 50674 | 50723 | 50705 | 50691 | 50693 | 50685 | 50697 | 50694 | 50702 | 50695 | 50697 | 50668 | 50713 |
| 14 | 50684 | 50687 | 50675 | 50720 | 50692 | 50691 | 50693 | 50694 | 50697 | 50688 | 50705 | 50697 | 50697 | 50664 | 50714 |
| 15 | 50714 | 50720 | 50695 | 50720 | 50709 | 50691 | 50697 | 50683 | 50686 | 50686 | 50704 | 50697 | 50697 | 50668 | 50710 |
| 16 | 50718 | 50694 | 50697 | 50696 | 50690 | 50693 | 50694 | 50694 | 50700 | 50695 | 50702 | 50697 | 50697 | 50669 | 50698 |
| 17 | 50716 | 50692 | 50695 | 50700 | 50705 | 50694 | 50694 | 50691 | 50695 | 50688 | 50703 | 50707 | 50697 | 50668 | 50700 |
| 18 | 50706 | 50714 | 50714 | 50718 | 50708 | 50691 | 50691 | 50696 | 50697 | 50687 | 50702 | 50696 | 50711 | 50672 | 50694 |
| 19 | 50682 | 50690 | 50672 | 50717 | 50710 | 50714 | 50693 | 50681 | 50696 | 50691 | 50702 | 50695 | 50697 | 50681 | 50696 |
| 20 | 50722 | 50712 | 50699 | 50696 | 50712 | 50690 | 50694 | 50692 | 50696 | 50689 | 50703 | 50695 | 50697 | 50661 | 50699 |
| 21 | 50671 | 50716 | 50697 | 50720 | 50705 | 50690 | 50688 | 50690 | 50695 | 50692 | 50702 | 50695 | 50697 | 50668 | 50700 |
| 22 | 50715 | 50695 | 50718 | 50719 | 50707 | 50690 | 50692 | 50698 | 50697 | 50695 | 50703 | 50697 | 50695 | 50668 | 50699 |
| 23 | 50683 | 50721 | 50675 | 50697 | 50711 | 50691 | 50689 | 50684 | 50696 | 50693 | 50702 | 50696 | 50711 | 50660 | 50710 |
| 25 | 50712 | 50712 | 50673 | 50697 | 50670 | 50691 | 50692 | 50698 | 50697 | 50689 | 50703 | 50697 | 50696 | 50685 | 50700 |
| 30 | 50687 | 50695 | 50695 | 50713 | 50707 | 50683 | 50685 | 50688 | 50696 | 50686 | 50705 | 50696 | 50697 | 50664 | 50711 |
| 40 | 50699 | 50693 | 50706 | 50692 | 50714 | 50688 | 50690 | 50688 | 50687 | 50684 | 50690 | 50696 | 50697 | 50681 | 50694 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 50682 bytes | – | 100% |
| 1,000 | 50669 bytes | -13 bytes | 100% |
| 10,000 | 50665 bytes | -4 bytes | 100% |
| 100,000 | 50663 bytes | -2 bytes | 1.74% |
| 1,000,000 | 50660 bytes | -3 bytes | 0.58% |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 50813 bytes | +153 bytes (+0.30%) | +22 bytes |
| 1 | 50791 bytes | +131 bytes (+0.26%) | – |
| 2 | 50816 bytes | +156 bytes (+0.31%) | +25 bytes |
| 3 | 50808 bytes | +148 bytes (+0.29%) | +17 bytes |
| 4 | 50823 bytes | +163 bytes (+0.32%) | +32 bytes |
| 5 | 50846 bytes | +186 bytes (+0.37%) | +55 bytes |
| 6 | 50831 bytes | +171 bytes (+0.34%) | +40 bytes |
| 7 | 50855 bytes | +195 bytes (+0.38%) | +64 bytes |
| 8 | 50861 bytes | +201 bytes (+0.40%) | +70 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 39560 bytes | -11100 bytes (-21.91%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 41800 bytes | -8860 bytes (-17.49%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 43046 bytes | -7614 bytes (-15.03%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 46193 bytes | -4467 bytes (-8.82%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 47125 bytes | -3535 bytes (-6.98%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 47636 bytes | -3024 bytes (-5.97%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 49054 bytes | -1606 bytes (-3.17%) |