| Boot |
33064 bytes (32.3k)
|
CDN |
| Baidu |
29348 bytes (28.7k)
|
CDN |
| cdnjs |
29262 bytes (28.6k)
|
CDN |
| gzip -6 (default) |
29135 bytes (28.5k)
|
local copy |
|
29114 bytes (28.4k)
|
CDN | |
| gzip -9 |
29082 bytes (28.4k)
|
local copy |
| 7zip -mx=9 -tgzip |
28214 bytes (27.6k)
|
local copy |
| libdeflate -12 |
28201 bytes (27.5k)
|
local copy |
| kzip -s0 -rn -b2 |
28175 bytes (27.5k)
|
local copy |
| zultra |
28173 bytes (27.5k)
|
local copy |
| pigz -11 -n |
28151 bytes (27.5k)
|
local copy |
| Zopfli |
28125 bytes (27.5k)
|
local copy |
| Zopfli (defluff) |
28124 bytes (27.5k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 100000 | --i100000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 128 | --mls128 |
| block splitting recursion | 4 | --bsr4 |
| 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 | 33064 bytes | 23419e86ac69a04cc78f25bd49055e00 | March 18, 2015 @ 10:12 |
| cdnjs | 29262 bytes | 23419e86ac69a04cc78f25bd49055e00 | (invalid) |
| 29114 bytes | 23419e86ac69a04cc78f25bd49055e00 | (invalid) |
| CDN | Size (compressed) | MD5 (uncompressed) | Comment / Diff | Timestamp |
|---|---|---|---|---|
| Baidu | 29348 bytes | b1c29aafa77a22632fecdac4c06362ae | only whitespaces differ | June 5, 2014 @ 10:05 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 28125 bytes | -4 bytes | zopfli --i100000 --mls128 --bsr4 --lazy --ohh | November 26, 2015 @ 14:53 |
| 28129 bytes | -1 byte | zopfli --i10000 --mls128 --bsr4 --lazy --ohh | October 21, 2015 @ 13:00 |
| 28130 bytes | -1 byte | zopfli --i1000 --mls128 --bsr4 --lazy --ohh | September 16, 2015 @ 23:34 |
| 28131 bytes | -2 bytes | zopfli --i10000 --mls8192 --bsr13 --lazy --ohh | September 10, 2015 @ 09:36 |
| 28133 bytes | -2 bytes | zopfli --i10000 --mls512 --bsr8 --lazy --ohh | September 10, 2015 @ 09:06 |
| 28135 bytes | -1 byte | zopfli --i1000 --mls8192 --bsr13 --lazy --ohh | September 7, 2015 @ 21:25 |
| 28136 bytes | -1 byte | zopfli --i1000 --mls512 --bsr9 --lazy --ohh | September 7, 2015 @ 21:22 |
| 28137 bytes | -2 bytes | zopfli --i1000 --mls512 --bsr10 --lazy --ohh | September 7, 2015 @ 21:21 |
| 28139 bytes | -1 byte | zopfli --i1000 --mls512 --bsr2 --lazy --ohh | September 7, 2015 @ 21:21 |
| 28140 bytes | – | zopfli --i100 --mls512 --bsr9 --lazy --ohh | September 7, 2015 @ 16:06 |
| 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 | 28138 | 28139 | 28136 | 28138 | 28134 | 28134 | 28140 | 28132 | 28135 | 28136 | 28142 | 28135 | 28147 | 28146 | 28140 |
| 4 | 28130 | 28133 | 28133 | 28132 | 28132 | 28132 | 28125 | 28146 | 28147 | 28145 | 28143 | 28140 | 28146 | 28149 | 28144 |
| 6 | 28139 | 28140 | 28134 | 28134 | 28147 | 28135 | 28133 | 28131 | 28141 | 28140 | 28146 | 28146 | 28145 | 28136 | 28147 |
| 7 | 28133 | 28133 | 28133 | 28134 | 28133 | 28130 | 28132 | 28141 | 28133 | 28140 | 28140 | 28139 | 28145 | 28139 | 28139 |
| 8 | 28136 | 28133 | 28135 | 28136 | 28134 | 28133 | 28133 | 28135 | 28133 | 28141 | 28140 | 28136 | 28145 | 28146 | 28144 |
| 9 | 28137 | 28136 | 28134 | 28134 | 28130 | 28133 | 28137 | 28142 | 28133 | 28140 | 28140 | 28146 | 28145 | 28140 | 28146 |
| 10 | 28135 | 28131 | 28134 | 28134 | 28132 | 28131 | 28138 | 28135 | 28136 | 28135 | 28140 | 28145 | 28146 | 28139 | 28143 |
| 11 | 28130 | 28133 | 28137 | 28136 | 28130 | 28134 | 28136 | 28130 | 28136 | 28135 | 28140 | 28134 | 28145 | 28146 | 28149 |
| 12 | 28146 | 28133 | 28136 | 28134 | 28144 | 28132 | 28138 | 28138 | 28133 | 28135 | 28140 | 28148 | 28145 | 28139 | 28134 |
| 13 | 28130 | 28133 | 28135 | 28133 | 28133 | 28138 | 28133 | 28138 | 28136 | 28136 | 28145 | 28137 | 28131 | 28149 | 28146 |
| 14 | 28132 | 28134 | 28135 | 28133 | 28133 | 28131 | 28138 | 28132 | 28133 | 28136 | 28140 | 28136 | 28139 | 28139 | 28138 |
| 15 | 28142 | 28132 | 28133 | 28133 | 28131 | 28132 | 28137 | 28140 | 28133 | 28141 | 28140 | 28136 | 28140 | 28138 | 28139 |
| 16 | 28145 | 28141 | 28133 | 28134 | 28131 | 28132 | 28138 | 28136 | 28135 | 28135 | 28140 | 28134 | 28141 | 28139 | 28144 |
| 17 | 28132 | 28142 | 28134 | 28134 | 28131 | 28134 | 28135 | 28135 | 28133 | 28135 | 28140 | 28136 | 28139 | 28146 | 28148 |
| 18 | 28138 | 28135 | 28135 | 28133 | 28132 | 28132 | 28133 | 28140 | 28136 | 28141 | 28140 | 28136 | 28139 | 28146 | 28148 |
| 19 | 28126 | 28141 | 28134 | 28134 | 28132 | 28130 | 28138 | 28138 | 28134 | 28135 | 28140 | 28134 | 28140 | 28136 | 28145 |
| 20 | 28132 | 28133 | 28134 | 28134 | 28131 | 28130 | 28132 | 28142 | 28135 | 28137 | 28140 | 28136 | 28142 | 28138 | 28138 |
| 21 | 28136 | 28132 | 28135 | 28133 | 28132 | 28133 | 28131 | 28138 | 28134 | 28137 | 28140 | 28139 | 28139 | 28148 | 28136 |
| 22 | 28135 | 28135 | 28136 | 28137 | 28143 | 28133 | 28138 | 28137 | 28132 | 28141 | 28145 | 28137 | 28139 | 28149 | 28142 |
| 23 | 28136 | 28139 | 28135 | 28133 | 28131 | 28127 | 28136 | 28137 | 28137 | 28136 | 28140 | 28137 | 28145 | 28148 | 28142 |
| 25 | 28131 | 28135 | 28132 | 28134 | 28148 | 28133 | 28137 | 28136 | 28136 | 28135 | 28140 | 28139 | 28139 | 28139 | 28143 |
| 30 | 28135 | 28136 | 28133 | 28137 | 28132 | 28134 | 28134 | 28138 | 28135 | 28134 | 28140 | 28136 | 28145 | 28137 | 28142 |
| 40 | 28131 | 28136 | 28133 | 28133 | 28131 | 28131 | 28131 | 28141 | 28137 | 28135 | 28140 | 28146 | 28140 | 28137 | 28140 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 28138 bytes | – | 100% |
| 1,000 | 28130 bytes | -8 bytes | 100% |
| 10,000 | 28129 bytes | -1 byte | 100% |
| 100,000 | 28125 bytes | -4 bytes | 0.87% |
| 1,000,000 | – | – | – |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 28183 bytes | +58 bytes (+0.21%) | +8 bytes |
| 1 | 28182 bytes | +57 bytes (+0.20%) | +7 bytes |
| 2 | 28175 bytes | +50 bytes (+0.18%) | – |
| 3 | 28200 bytes | +75 bytes (+0.27%) | +25 bytes |
| 4 | 28224 bytes | +99 bytes (+0.35%) | +49 bytes |
| 5 | 28229 bytes | +104 bytes (+0.37%) | +54 bytes |
| 6 | 28229 bytes | +104 bytes (+0.37%) | +54 bytes |
| 7 | 28263 bytes | +138 bytes (+0.49%) | +88 bytes |
| 8 | 28309 bytes | +184 bytes (+0.65%) | +134 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 23519 bytes | -4606 bytes (-16.38%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 24097 bytes | -4028 bytes (-14.32%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 24935 bytes | -3190 bytes (-11.34%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 25933 bytes | -2192 bytes (-7.79%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 26940 bytes | -1185 bytes (-4.21%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 27144 bytes | -981 bytes (-3.49%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 27762 bytes | -363 bytes (-1.29%) |