| Boot |
33545 bytes (32.8k)
|
CDN |
| Baidu |
29806 bytes (29.1k)
|
CDN |
| cdnjs |
29723 bytes (29.0k)
|
CDN |
| jsdelivr |
29628 bytes (28.9k)
|
CDN |
| gzip -6 (default) |
29593 bytes (28.9k)
|
local copy |
|
29572 bytes (28.9k)
|
CDN | |
| Sina |
29537 bytes (28.8k)
|
CDN |
| gzip -9 |
29528 bytes (28.8k)
|
local copy |
| libdeflate -12 |
28662 bytes (28.0k)
|
local copy |
| 7zip -mx=9 -tgzip |
28635 bytes (28.0k)
|
local copy |
| kzip -s0 -rn -b1 |
28612 bytes (27.9k)
|
local copy |
| zultra |
28602 bytes (27.9k)
|
local copy |
| pigz -11 -n |
28572 bytes (27.9k)
|
local copy |
| Zopfli |
28554 bytes (27.9k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 100000 | --i100000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 32 | --mls32 |
| block splitting recursion | 16 | --bsr16 |
| 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 | 33545 bytes | 9337e3234528f408f30ed9235ab89bbc | March 18, 2015 @ 10:13 |
| cdnjs | 29723 bytes | 9337e3234528f408f30ed9235ab89bbc | (invalid) |
| 29572 bytes | 9337e3234528f408f30ed9235ab89bbc | (invalid) | |
| Sina | 29537 bytes | 9337e3234528f408f30ed9235ab89bbc | (invalid) |
| CDN | Size (compressed) | MD5 (uncompressed) | Comment / Diff | Timestamp |
|---|---|---|---|---|
| Baidu | 29806 bytes | a496b48708d0a2787285f45f1f3c2dbb | only whitespaces differ | June 5, 2014 @ 10:05 |
| jsdelivr | 29628 bytes | a496b48708d0a2787285f45f1f3c2dbb | only whitespaces differ | August 7, 2014 @ 18:28 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 28554 bytes | -2 bytes | zopfli --i100000 --mls32 --bsr16 --lazy --ohh | February 12, 2016 @ 10:48 |
| 28556 bytes | -2 bytes | zopfli --i100000 --mls128 --bsr11 --lazy --ohh | November 26, 2015 @ 16:16 |
| 28558 bytes | -2 bytes | zopfli --i10000 --mls128 --bsr11 --lazy --ohh | October 21, 2015 @ 13:01 |
| 28560 bytes | -2 bytes | zopfli --i1000 --mls128 --bsr11 --lazy --ohh | September 16, 2015 @ 22:54 |
| 28562 bytes | -1 byte | zopfli --i10000 --mls2048 --bsr11 --lazy --ohh | September 10, 2015 @ 08:22 |
| 28563 bytes | -2 bytes | zopfli --i10000 --mls1024 --bsr10 --lazy --ohh | September 10, 2015 @ 08:18 |
| 28565 bytes | -2 bytes | zopfli --i10000 --mls512 --bsr9 --lazy --ohh | September 10, 2015 @ 08:10 |
| 28567 bytes | -1 byte | zopfli --i1000 --mls1024 --bsr9 --lazy --ohh | September 7, 2015 @ 21:15 |
| 28568 bytes | -1 byte | zopfli --i1000 --mls512 --bsr8 --lazy --ohh | September 7, 2015 @ 21:15 |
| 28569 bytes | – | zopfli --i100 --mls2048 --bsr11 --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 | 28565 | 28565 | 28561 | 28562 | 28560 | 28566 | 28567 | 28569 | 28570 | 28570 | 28571 | 28573 | 28576 | 28569 | 28584 |
| 4 | 28560 | 28561 | 28564 | 28571 | 28571 | 28559 | 28567 | 28566 | 28565 | 28565 | 28563 | 28568 | 28574 | 28579 | 28568 |
| 6 | 28561 | 28562 | 28566 | 28560 | 28561 | 28577 | 28567 | 28573 | 28573 | 28568 | 28566 | 28573 | 28571 | 28574 | 28567 |
| 7 | 28561 | 28559 | 28561 | 28560 | 28562 | 28559 | 28564 | 28565 | 28571 | 28563 | 28568 | 28574 | 28580 | 28573 | 28578 |
| 8 | 28565 | 28566 | 28559 | 28559 | 28559 | 28559 | 28560 | 28565 | 28566 | 28565 | 28567 | 28573 | 28578 | 28562 | 28567 |
| 9 | 28561 | 28568 | 28564 | 28567 | 28577 | 28559 | 28567 | 28568 | 28565 | 28565 | 28566 | 28565 | 28580 | 28566 | 28571 |
| 10 | 28563 | 28562 | 28559 | 28560 | 28570 | 28561 | 28565 | 28564 | 28565 | 28563 | 28566 | 28573 | 28573 | 28579 | 28580 |
| 11 | 28562 | 28561 | 28564 | 28556 | 28563 | 28557 | 28556 | 28567 | 28571 | 28567 | 28562 | 28567 | 28572 | 28570 | 28578 |
| 12 | 28559 | 28559 | 28562 | 28561 | 28571 | 28560 | 28566 | 28565 | 28564 | 28563 | 28567 | 28566 | 28579 | 28578 | 28579 |
| 13 | 28559 | 28560 | 28564 | 28560 | 28563 | 28560 | 28565 | 28565 | 28565 | 28565 | 28569 | 28573 | 28578 | 28562 | 28567 |
| 14 | 28563 | 28563 | 28564 | 28560 | 28564 | 28559 | 28564 | 28564 | 28565 | 28563 | 28566 | 28563 | 28577 | 28561 | 28580 |
| 15 | 28560 | 28561 | 28564 | 28560 | 28562 | 28560 | 28565 | 28564 | 28565 | 28563 | 28568 | 28566 | 28580 | 28577 | 28578 |
| 16 | 28561 | 28562 | 28564 | 28559 | 28554 | 28562 | 28566 | 28564 | 28566 | 28566 | 28568 | 28573 | 28579 | 28568 | 28578 |
| 17 | 28562 | 28562 | 28565 | 28560 | 28563 | 28560 | 28564 | 28564 | 28566 | 28567 | 28568 | 28573 | 28578 | 28560 | 28579 |
| 18 | 28559 | 28561 | 28562 | 28565 | 28565 | 28560 | 28564 | 28567 | 28562 | 28563 | 28568 | 28573 | 28574 | 28577 | 28576 |
| 19 | 28561 | 28561 | 28562 | 28561 | 28564 | 28560 | 28565 | 28567 | 28560 | 28563 | 28563 | 28572 | 28573 | 28562 | 28576 |
| 20 | 28559 | 28561 | 28564 | 28561 | 28564 | 28562 | 28566 | 28565 | 28560 | 28574 | 28565 | 28573 | 28579 | 28562 | 28572 |
| 21 | 28560 | 28562 | 28563 | 28559 | 28560 | 28567 | 28564 | 28566 | 28564 | 28562 | 28569 | 28565 | 28580 | 28560 | 28577 |
| 22 | 28563 | 28561 | 28563 | 28560 | 28560 | 28560 | 28565 | 28565 | 28564 | 28567 | 28568 | 28564 | 28579 | 28562 | 28576 |
| 23 | 28559 | 28562 | 28564 | 28560 | 28562 | 28567 | 28566 | 28565 | 28564 | 28561 | 28568 | 28573 | 28572 | 28562 | 28566 |
| 25 | 28561 | 28562 | 28563 | 28561 | 28561 | 28559 | 28564 | 28566 | 28561 | 28563 | 28563 | 28566 | 28572 | 28580 | 28577 |
| 30 | 28561 | 28562 | 28562 | 28568 | 28571 | 28561 | 28564 | 28564 | 28564 | 28567 | 28568 | 28572 | 28562 | 28559 | 28576 |
| 40 | 28559 | 28561 | 28563 | 28567 | 28570 | 28568 | 28564 | 28564 | 28571 | 28566 | 28566 | 28566 | 28572 | 28574 | 28575 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 28567 bytes | – | 100% |
| 1,000 | 28560 bytes | -7 bytes | 100% |
| 10,000 | 28558 bytes | -2 bytes | 100% |
| 100,000 | 28554 bytes | -4 bytes | 1.16% |
| 1,000,000 | – | – | – |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 28613 bytes | +59 bytes (+0.21%) | +1 byte |
| 1 | 28612 bytes | +58 bytes (+0.20%) | – |
| 2 | 28613 bytes | +59 bytes (+0.21%) | +1 byte |
| 3 | 28634 bytes | +80 bytes (+0.28%) | +22 bytes |
| 4 | 28674 bytes | +120 bytes (+0.42%) | +62 bytes |
| 5 | 28681 bytes | +127 bytes (+0.44%) | +69 bytes |
| 6 | 28708 bytes | +154 bytes (+0.54%) | +96 bytes |
| 7 | 28697 bytes | +143 bytes (+0.50%) | +85 bytes |
| 8 | 28714 bytes | +160 bytes (+0.56%) | +102 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 23860 bytes | -4694 bytes (-16.44%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 24399 bytes | -4155 bytes (-14.55%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 25261 bytes | -3293 bytes (-11.53%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 26284 bytes | -2270 bytes (-7.95%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 27279 bytes | -1275 bytes (-4.47%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 27528 bytes | -1026 bytes (-3.59%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 28164 bytes | -390 bytes (-1.37%) |