| Boot |
51834 bytes (50.6k)
|
CDN |
| cdnjs |
45459 bytes (44.4k)
|
CDN |
| gzip -6 (default) |
45150 bytes (44.1k)
|
local copy |
| unpkg |
45143 bytes (44.1k)
|
CDN |
|
45095 bytes (44.0k)
|
CDN | |
| gzip -9 |
45074 bytes (44.0k)
|
local copy |
| Yandex |
45073 bytes (44.0k)
|
CDN |
| 7zip -mx=9 -tgzip |
43744 bytes (42.7k)
|
local copy |
| kzip -s0 -rn -b0 |
43706 bytes (42.7k)
|
local copy |
| zultra |
43682 bytes (42.7k)
|
local copy |
| libdeflate -12 |
43681 bytes (42.7k)
|
local copy |
| pigz -11 -n |
43631 bytes (42.6k)
|
local copy |
| Zopfli |
43599 bytes (42.6k)
|
local copy |
| Zopfli (defluff) |
43597 bytes (42.6k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 100000 | --i100000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 256 | --mls256 |
| block splitting recursion | 10 | --bsr10 |
| 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 | 51834 bytes | 8eb6e12ab5241c6ad600aa5fae1eaeb9 | March 18, 2015 @ 10:41 |
| cdnjs | 45459 bytes | 8eb6e12ab5241c6ad600aa5fae1eaeb9 | October 31, 2014 @ 07:15 |
| unpkg | 45143 bytes | 8eb6e12ab5241c6ad600aa5fae1eaeb9 | July 11, 2016 @ 15:54 |
| 45095 bytes | 8eb6e12ab5241c6ad600aa5fae1eaeb9 | October 14, 2014 @ 00:49 | |
| Yandex | 45073 bytes | 8eb6e12ab5241c6ad600aa5fae1eaeb9 | June 11, 2015 @ 14:17 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 43599 bytes | -2 bytes | zopfli --i100000 --mls256 --bsr10 --lazy --ohh | November 30, 2015 @ 10:24 |
| 43601 bytes | -3 bytes | zopfli --i10000 --mls256 --bsr10 --lazy --ohh | October 14, 2015 @ 02:22 |
| 43604 bytes | -3 bytes | zopfli --i10000 --mls512 --bsr9 --lazy --ohh | September 9, 2015 @ 07:38 |
| 43607 bytes | -14 bytes | zopfli --i1000 --mls512 --bsr16 --lazy --ohh | September 7, 2015 @ 18:54 |
| 43621 bytes | – | zopfli --i100 --mls1024 --bsr14 --lazy --ohh | September 7, 2015 @ 16:12 |
| 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 | 43627 | 43628 | 43636 | 43624 | 43624 | 43626 | 43638 | 43646 | 43628 | 43634 | 43630 | 43637 | 43626 | 43629 | 43620 |
| 4 | 43645 | 43636 | 43636 | 43647 | 43647 | 43649 | 43633 | 43633 | 43630 | 43625 | 43625 | 43624 | 43626 | 43612 | 43635 |
| 6 | 43630 | 43630 | 43628 | 43644 | 43616 | 43621 | 43619 | 43628 | 43613 | 43612 | 43609 | 43617 | 43608 | 43613 | 43620 |
| 7 | 43646 | 43642 | 43604 | 43621 | 43616 | 43622 | 43615 | 43612 | 43606 | 43611 | 43610 | 43618 | 43607 | 43605 | 43612 |
| 8 | 43638 | 43630 | 43629 | 43643 | 43633 | 43621 | 43627 | 43625 | 43622 | 43610 | 43611 | 43613 | 43607 | 43605 | 43610 |
| 9 | 43642 | 43636 | 43623 | 43634 | 43617 | 43617 | 43617 | 43615 | 43604 | 43612 | 43610 | 43610 | 43607 | 43605 | 43611 |
| 10 | 43623 | 43623 | 43611 | 43620 | 43616 | 43627 | 43610 | 43599 | 43609 | 43627 | 43612 | 43622 | 43606 | 43606 | 43611 |
| 11 | 43647 | 43649 | 43640 | 43643 | 43628 | 43622 | 43616 | 43628 | 43615 | 43614 | 43610 | 43612 | 43615 | 43609 | 43611 |
| 12 | 43642 | 43643 | 43613 | 43622 | 43610 | 43620 | 43627 | 43628 | 43610 | 43605 | 43611 | 43611 | 43606 | 43605 | 43612 |
| 13 | 43630 | 43631 | 43612 | 43648 | 43638 | 43631 | 43628 | 43629 | 43616 | 43606 | 43612 | 43617 | 43608 | 43605 | 43617 |
| 14 | 43647 | 43649 | 43616 | 43650 | 43635 | 43635 | 43611 | 43627 | 43612 | 43611 | 43619 | 43617 | 43615 | 43605 | 43613 |
| 15 | 43644 | 43641 | 43605 | 43615 | 43616 | 43621 | 43614 | 43615 | 43607 | 43611 | 43612 | 43617 | 43609 | 43606 | 43612 |
| 16 | 43649 | 43645 | 43616 | 43615 | 43616 | 43620 | 43617 | 43616 | 43605 | 43626 | 43612 | 43616 | 43606 | 43606 | 43614 |
| 17 | 43634 | 43638 | 43616 | 43632 | 43616 | 43621 | 43617 | 43629 | 43623 | 43615 | 43610 | 43611 | 43607 | 43605 | 43612 |
| 18 | 43647 | 43648 | 43632 | 43644 | 43642 | 43643 | 43642 | 43628 | 43621 | 43606 | 43610 | 43628 | 43607 | 43605 | 43639 |
| 19 | 43649 | 43642 | 43633 | 43649 | 43637 | 43621 | 43617 | 43628 | 43610 | 43610 | 43622 | 43622 | 43607 | 43605 | 43611 |
| 20 | 43630 | 43631 | 43616 | 43647 | 43616 | 43621 | 43623 | 43617 | 43612 | 43605 | 43610 | 43628 | 43607 | 43605 | 43611 |
| 21 | 43631 | 43628 | 43644 | 43620 | 43641 | 43620 | 43615 | 43620 | 43612 | 43606 | 43612 | 43610 | 43606 | 43605 | 43610 |
| 22 | 43630 | 43627 | 43615 | 43621 | 43618 | 43622 | 43617 | 43614 | 43607 | 43610 | 43610 | 43616 | 43608 | 43606 | 43611 |
| 23 | 43642 | 43643 | 43642 | 43616 | 43612 | 43637 | 43615 | 43616 | 43609 | 43611 | 43611 | 43619 | 43606 | 43606 | 43612 |
| 25 | 43654 | 43635 | 43631 | 43639 | 43640 | 43635 | 43627 | 43626 | 43608 | 43605 | 43612 | 43618 | 43605 | 43605 | 43613 |
| 30 | 43650 | 43646 | 43616 | 43624 | 43616 | 43622 | 43612 | 43616 | 43607 | 43605 | 43612 | 43611 | 43606 | 43613 | 43612 |
| 40 | 43650 | 43648 | 43640 | 43641 | 43642 | 43633 | 43614 | 43617 | 43605 | 43610 | 43609 | 43611 | 43606 | 43613 | 43614 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 43617 bytes | – | 100% |
| 1,000 | 43604 bytes | -13 bytes | 100% |
| 10,000 | 43601 bytes | -3 bytes | 100% |
| 100,000 | 43599 bytes | -2 bytes | 0.29% |
| 1,000,000 | – | – | – |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 43706 bytes | +107 bytes (+0.25%) | – |
| 1 | 43707 bytes | +108 bytes (+0.25%) | +1 byte |
| 2 | 43725 bytes | +126 bytes (+0.29%) | +19 bytes |
| 3 | 43754 bytes | +155 bytes (+0.36%) | +48 bytes |
| 4 | 43762 bytes | +163 bytes (+0.37%) | +56 bytes |
| 5 | 43791 bytes | +192 bytes (+0.44%) | +85 bytes |
| 6 | 43767 bytes | +168 bytes (+0.39%) | +61 bytes |
| 7 | 43767 bytes | +168 bytes (+0.39%) | +61 bytes |
| 8 | 43815 bytes | +216 bytes (+0.50%) | +109 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 34869 bytes | -8730 bytes (-20.02%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 36405 bytes | -7194 bytes (-16.50%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 38100 bytes | -5499 bytes (-12.61%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 40071 bytes | -3528 bytes (-8.09%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 40851 bytes | -2748 bytes (-6.30%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 41540 bytes | -2059 bytes (-4.72%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 42632 bytes | -967 bytes (-2.22%) |