| Boot |
52509 bytes (51.3k)
|
CDN |
| Baidu |
46215 bytes (45.1k)
|
CDN |
| cdnjs |
46079 bytes (45.0k)
|
CDN |
| unpkg |
45813 bytes (44.7k)
|
CDN |
| gzip -6 (default) |
45788 bytes (44.7k)
|
local copy |
|
45729 bytes (44.7k)
|
CDN | |
| Yandex |
45697 bytes (44.6k)
|
CDN |
| jsdelivr |
45697 bytes (44.6k)
|
CDN |
| gzip -9 |
45690 bytes (44.6k)
|
local copy |
| 7zip -mx=9 -tgzip |
44334 bytes (43.3k)
|
local copy |
| libdeflate -12 |
44320 bytes (43.3k)
|
local copy |
| zultra |
44314 bytes (43.3k)
|
local copy |
| kzip -s0 -rn -b0 |
44303 bytes (43.3k)
|
local copy |
| pigz -11 -n |
44230 bytes (43.2k)
|
local copy |
| Zopfli |
44208 bytes (43.2k)
|
local copy |
| Zopfli (defluff) |
44207 bytes (43.2k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 100000 | --i100000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 256 | --mls256 |
| block splitting recursion | 21 | --bsr21 |
| 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 | 52509 bytes | eeefd310d11dfd032621c06917e7d7fa | March 18, 2015 @ 11:04 |
| cdnjs | 46079 bytes | eeefd310d11dfd032621c06917e7d7fa | December 18, 2014 @ 18:00 |
| unpkg | 45813 bytes | eeefd310d11dfd032621c06917e7d7fa | July 11, 2016 @ 15:53 |
| 45729 bytes | eeefd310d11dfd032621c06917e7d7fa | December 2, 2014 @ 07:49 | |
| Yandex | 45697 bytes | eeefd310d11dfd032621c06917e7d7fa | June 11, 2015 @ 14:17 |
| jsdelivr | 45697 bytes | eeefd310d11dfd032621c06917e7d7fa | December 7, 2014 @ 10:01 |
| CDN | Size (compressed) | MD5 (uncompressed) | Comment / Diff | Timestamp |
|---|---|---|---|---|
| Baidu | 46215 bytes | beb3b86afd6a3445e8ea7ea59966d73c | only whitespaces differ | April 3, 2015 @ 04:57 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 44208 bytes | -1 byte | zopfli --i100000 --mls256 --bsr21 --lazy --ohh | November 30, 2015 @ 10:17 |
| 44209 bytes | -1 byte | zopfli --i10000 --mls256 --bsr21 --lazy --ohh | October 13, 2015 @ 20:52 |
| 44210 bytes | -1 byte | zopfli --i10000 --mls128 --bsr13 --lazy --ohh | October 13, 2015 @ 20:49 |
| 44211 bytes | -1 byte | zopfli --i10000 --mls4096 --bsr15 --lazy --ohh | October 13, 2015 @ 20:39 |
| 44212 bytes | -1 byte | zopfli --i1000 --mls256 --bsr21 --lazy --ohh | September 22, 2015 @ 20:28 |
| 44213 bytes | -1 byte | zopfli --i10000 --mls512 --bsr16 --lazy --ohh | September 8, 2015 @ 08:17 |
| 44214 bytes | -3 bytes | zopfli --i10000 --mls512 --bsr8 --lazy --ohh | September 8, 2015 @ 08:13 |
| 44217 bytes | -1 byte | zopfli --i1000 --mls1024 --bsr13 --lazy --ohh | September 7, 2015 @ 17:57 |
| 44218 bytes | -2 bytes | zopfli --i1000 --mls512 --bsr8 --lazy --ohh | September 7, 2015 @ 17:54 |
| 44220 bytes | – | zopfli --i100 --mls1024 --bsr13 --lazy --ohh | September 7, 2015 @ 16:39 |
| 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 | 44251 | 44242 | 44240 | 44230 | 44230 | 44243 | 44237 | 44242 | 44243 | 44249 | 44235 | 44232 | 44232 | 44225 | 44233 |
| 4 | 44231 | 44245 | 44257 | 44257 | 44242 | 44234 | 44234 | 44230 | 44236 | 44237 | 44235 | 44218 | 44220 | 44218 | 44249 |
| 6 | 44234 | 44245 | 44227 | 44218 | 44220 | 44219 | 44219 | 44218 | 44216 | 44215 | 44216 | 44213 | 44219 | 44220 | 44226 |
| 7 | 44229 | 44223 | 44222 | 44221 | 44221 | 44221 | 44218 | 44216 | 44218 | 44217 | 44216 | 44215 | 44219 | 44221 | 44223 |
| 8 | 44235 | 44223 | 44222 | 44218 | 44217 | 44239 | 44218 | 44216 | 44214 | 44216 | 44214 | 44218 | 44220 | 44219 | 44217 |
| 9 | 44244 | 44222 | 44222 | 44219 | 44218 | 44218 | 44214 | 44212 | 44217 | 44216 | 44217 | 44214 | 44219 | 44220 | 44230 |
| 10 | 44233 | 44237 | 44224 | 44219 | 44221 | 44216 | 44212 | 44233 | 44238 | 44215 | 44220 | 44220 | 44220 | 44219 | 44236 |
| 11 | 44230 | 44222 | 44226 | 44245 | 44221 | 44237 | 44232 | 44235 | 44216 | 44215 | 44215 | 44216 | 44220 | 44218 | 44218 |
| 12 | 44229 | 44229 | 44225 | 44242 | 44236 | 44242 | 44234 | 44226 | 44218 | 44215 | 44216 | 44214 | 44220 | 44218 | 44218 |
| 13 | 44231 | 44241 | 44225 | 44245 | 44249 | 44245 | 44209 | 44211 | 44216 | 44215 | 44214 | 44213 | 44220 | 44220 | 44223 |
| 14 | 44229 | 44226 | 44223 | 44219 | 44220 | 44237 | 44218 | 44211 | 44219 | 44217 | 44214 | 44216 | 44219 | 44218 | 44230 |
| 15 | 44230 | 44223 | 44222 | 44221 | 44221 | 44218 | 44219 | 44214 | 44217 | 44216 | 44216 | 44211 | 44219 | 44221 | 44224 |
| 16 | 44234 | 44223 | 44220 | 44219 | 44220 | 44215 | 44218 | 44218 | 44213 | 44215 | 44216 | 44216 | 44221 | 44220 | 44218 |
| 17 | 44231 | 44231 | 44239 | 44229 | 44245 | 44235 | 44234 | 44217 | 44216 | 44215 | 44216 | 44213 | 44220 | 44219 | 44220 |
| 18 | 44230 | 44252 | 44244 | 44237 | 44237 | 44235 | 44228 | 44227 | 44216 | 44215 | 44220 | 44211 | 44220 | 44220 | 44245 |
| 19 | 44221 | 44228 | 44222 | 44246 | 44248 | 44231 | 44229 | 44228 | 44215 | 44218 | 44237 | 44214 | 44220 | 44218 | 44229 |
| 20 | 44230 | 44234 | 44226 | 44248 | 44234 | 44234 | 44218 | 44216 | 44216 | 44215 | 44216 | 44214 | 44220 | 44218 | 44218 |
| 21 | 44230 | 44223 | 44227 | 44218 | 44221 | 44215 | 44210 | 44208 | 44214 | 44214 | 44216 | 44213 | 44220 | 44220 | 44214 |
| 22 | 44229 | 44230 | 44224 | 44216 | 44218 | 44216 | 44214 | 44215 | 44217 | 44216 | 44214 | 44216 | 44219 | 44219 | 44224 |
| 23 | 44236 | 44223 | 44226 | 44219 | 44220 | 44213 | 44219 | 44216 | 44220 | 44218 | 44216 | 44213 | 44220 | 44220 | 44214 |
| 25 | 44242 | 44251 | 44249 | 44241 | 44239 | 44243 | 44218 | 44213 | 44214 | 44217 | 44216 | 44213 | 44220 | 44220 | 44214 |
| 30 | 44230 | 44225 | 44226 | 44220 | 44218 | 44213 | 44216 | 44216 | 44218 | 44216 | 44216 | 44213 | 44219 | 44218 | 44215 |
| 40 | 44234 | 44243 | 44220 | 44212 | 44221 | 44217 | 44218 | 44211 | 44216 | 44215 | 44215 | 44214 | 44220 | 44220 | 44223 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 44215 bytes | – | 100% |
| 1,000 | 44212 bytes | -3 bytes | 100% |
| 10,000 | 44209 bytes | -3 bytes | 100% |
| 100,000 | 44208 bytes | -1 byte | 0.58% |
| 1,000,000 | – | – | – |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 44303 bytes | +95 bytes (+0.21%) | – |
| 1 | 44303 bytes | +95 bytes (+0.21%) | – |
| 2 | 44323 bytes | +115 bytes (+0.26%) | +20 bytes |
| 3 | 44348 bytes | +140 bytes (+0.32%) | +45 bytes |
| 4 | 44364 bytes | +156 bytes (+0.35%) | +61 bytes |
| 5 | 44389 bytes | +181 bytes (+0.41%) | +86 bytes |
| 6 | 44374 bytes | +166 bytes (+0.38%) | +71 bytes |
| 7 | 44386 bytes | +178 bytes (+0.40%) | +83 bytes |
| 8 | 44425 bytes | +217 bytes (+0.49%) | +122 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 35302 bytes | -8906 bytes (-20.15%) |
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 36918 bytes | -7290 bytes (-16.49%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 38675 bytes | -5533 bytes (-12.52%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 40640 bytes | -3568 bytes (-8.07%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 41421 bytes | -2787 bytes (-6.30%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 42068 bytes | -2140 bytes (-4.84%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 43193 bytes | -1015 bytes (-2.30%) |