| Boot |
14951 bytes (14.6k)
|
CDN |
| cdnjs |
12918 bytes (12.6k)
|
CDN |
| gzip -6 (default) |
12854 bytes (12.6k)
|
local copy |
| gzip -9 |
12837 bytes (12.5k)
|
local copy |
| unpkg |
12831 bytes (12.5k)
|
CDN |
| 7zip -mx=9 -tgzip |
12398 bytes (12.1k)
|
local copy |
| kzip -s0 -rn -b2 |
12390 bytes (12.1k)
|
local copy |
| libdeflate -12 |
12382 bytes (12.1k)
|
local copy |
| zultra |
12382 bytes (12.1k)
|
local copy |
| pigz -11 -n |
12377 bytes (12.1k)
|
local copy |
| Zopfli |
12357 bytes (12.1k)
|
local copy |
| Description | Value | Parameter |
|---|---|---|
| iterations | 1000000 | --i1000000 |
| maximum blocks | 8 | --mb8 |
| maximum length score | 8192 | --mls8192 |
| block splitting recursion | 9 | --bsr9 |
| 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 | 14951 bytes | 699dcb46c9de59ea2a0c674c31e77334 | (invalid) |
| cdnjs | 12918 bytes | 699dcb46c9de59ea2a0c674c31e77334 | (invalid) |
| unpkg | 12831 bytes | 699dcb46c9de59ea2a0c674c31e77334 | April 6, 2017 @ 17:25 |
| Size | Improvement | Parameters | Found |
|---|---|---|---|
| 12357 bytes | -1 byte | zopfli --i1000000 --mls8192 --bsr9 --lazy --ohh | March 9, 2020 @ 16:22 |
| 12358 bytes | -2 bytes | zopfli --i100000 --mls8192 --bsr9 --lazy --ohh | April 10, 2017 @ 16:03 |
| 12360 bytes | -1 byte | zopfli --i10000 --mls8192 --bsr9 --lazy --ohh | April 7, 2017 @ 04:39 |
| 12361 bytes | -2 bytes | zopfli --i1000 --mls128 --bsr10 --lazy --ohh | April 6, 2017 @ 18:58 |
| 12363 bytes | -1 byte | zopfli --i1000 --mls8 --bsr10 --lazy --ohh | April 6, 2017 @ 18:57 |
| 12364 bytes | – | zopfli --i100 --mls128 --bsr16 --lazy --ohh | April 6, 2017 @ 17:47 |
| 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 | 12376 | 12377 | 12372 | 12366 | 12365 | 12364 | 12364 | 12363 | 12366 | 12366 | 12368 | 12367 | 12366 | 12363 | 12364 |
| 4 | 12363 | 12370 | 12364 | 12374 | 12365 | 12367 | 12363 | 12364 | 12362 | 12368 | 12368 | 12367 | 12365 | 12370 | 12367 |
| 6 | 12375 | 12375 | 12375 | 12371 | 12363 | 12364 | 12362 | 12364 | 12362 | 12364 | 12367 | 12368 | 12363 | 12363 | 12366 |
| 7 | 12368 | 12370 | 12372 | 12376 | 12367 | 12364 | 12363 | 12363 | 12363 | 12367 | 12367 | 12368 | 12367 | 12363 | 12365 |
| 8 | 12376 | 12380 | 12373 | 12361 | 12365 | 12363 | 12364 | 12363 | 12365 | 12367 | 12368 | 12367 | 12361 | 12363 | 12366 |
| 9 | 12374 | 12375 | 12373 | 12371 | 12363 | 12363 | 12362 | 12363 | 12363 | 12365 | 12367 | 12367 | 12357 | 12363 | 12366 |
| 10 | 12381 | 12373 | 12362 | 12373 | 12365 | 12363 | 12361 | 12363 | 12367 | 12366 | 12367 | 12367 | 12367 | 12367 | 12366 |
| 11 | 12371 | 12373 | 12376 | 12373 | 12372 | 12363 | 12361 | 12363 | 12363 | 12362 | 12367 | 12368 | 12368 | 12363 | 12366 |
| 12 | 12371 | 12369 | 12374 | 12371 | 12365 | 12364 | 12362 | 12363 | 12362 | 12367 | 12367 | 12367 | 12367 | 12368 | 12366 |
| 13 | 12370 | 12369 | 12367 | 12371 | 12360 | 12363 | 12359 | 12363 | 12363 | 12369 | 12364 | 12367 | 12359 | 12365 | 12364 |
| 14 | 12380 | 12380 | 12361 | 12374 | 12365 | 12363 | 12362 | 12363 | 12362 | 12367 | 12367 | 12368 | 12363 | 12363 | 12364 |
| 15 | 12369 | 12369 | 12372 | 12373 | 12373 | 12363 | 12363 | 12363 | 12370 | 12367 | 12367 | 12368 | 12362 | 12363 | 12366 |
| 16 | 12375 | 12379 | 12363 | 12374 | 12377 | 12364 | 12361 | 12363 | 12362 | 12367 | 12367 | 12368 | 12364 | 12362 | 12366 |
| 17 | 12366 | 12375 | 12381 | 12372 | 12365 | 12363 | 12362 | 12363 | 12367 | 12367 | 12367 | 12362 | 12364 | 12363 | 12365 |
| 18 | 12376 | 12369 | 12380 | 12373 | 12376 | 12364 | 12361 | 12366 | 12362 | 12370 | 12367 | 12367 | 12367 | 12363 | 12359 |
| 19 | 12379 | 12378 | 12380 | 12381 | 12362 | 12364 | 12363 | 12363 | 12371 | 12367 | 12367 | 12369 | 12365 | 12367 | 12366 |
| 20 | 12375 | 12374 | 12377 | 12361 | 12362 | 12364 | 12362 | 12363 | 12363 | 12367 | 12367 | 12368 | 12364 | 12363 | 12364 |
| 21 | 12373 | 12369 | 12372 | 12368 | 12372 | 12363 | 12361 | 12363 | 12363 | 12369 | 12367 | 12367 | 12363 | 12362 | 12362 |
| 22 | 12377 | 12377 | 12375 | 12362 | 12362 | 12363 | 12360 | 12363 | 12363 | 12365 | 12367 | 12368 | 12363 | 12362 | 12364 |
| 23 | 12376 | 12375 | 12367 | 12375 | 12373 | 12364 | 12362 | 12364 | 12362 | 12367 | 12367 | 12367 | 12363 | 12363 | 12363 |
| 25 | 12375 | 12380 | 12367 | 12371 | 12362 | 12364 | 12362 | 12363 | 12362 | 12367 | 12367 | 12368 | 12364 | 12363 | 12366 |
| 30 | 12373 | 12373 | 12362 | 12372 | 12362 | 12363 | 12362 | 12363 | 12362 | 12367 | 12367 | 12368 | 12364 | 12366 | 12363 |
| 40 | 12373 | 12367 | 12362 | 12370 | 12362 | 12364 | 12362 | 12364 | 12362 | 12366 | 12368 | 12368 | 12364 | 12365 | 12366 |
| Iterations | Min. Bytes | Reduction | Coverage |
|---|---|---|---|
| 100 | 12364 bytes | – | 100% |
| 1,000 | 12361 bytes | -3 bytes | 100% |
| 10,000 | 12360 bytes | -1 byte | 100% |
| 100,000 | 12358 bytes | -2 bytes | 3.77% |
| 1,000,000 | 12357 bytes | -1 byte | 0.29% |
| 10,000,000 | – | – | – |
| Blocks | Min. Bytes | Compared To Best Zopfli | Compared To Best KZIP |
|---|---|---|---|
| (any) | 12407 bytes | +50 bytes (+0.40%) | +17 bytes |
| 1 | 12405 bytes | +48 bytes (+0.39%) | +15 bytes |
| 2 | 12390 bytes | +33 bytes (+0.27%) | – |
| 3 | 12400 bytes | +43 bytes (+0.35%) | +10 bytes |
| 4 | 12431 bytes | +74 bytes (+0.60%) | +41 bytes |
| 5 | 12423 bytes | +66 bytes (+0.53%) | +33 bytes |
| 6 | 12450 bytes | +93 bytes (+0.75%) | +60 bytes |
| 7 | 12489 bytes | +132 bytes (+1.07%) | +99 bytes |
| 8 | 12527 bytes | +170 bytes (+1.38%) | +137 bytes |
| Algorithm | Program | Parameters | Size | Compared To Best Zopfli |
|---|---|---|---|---|
| RAR (proprietary) | RAR | rar a -m5 -md64m -mc63:128t -mt1 | 10571 bytes | -1786 bytes (-14.45%) |
| ZPAQ (Wikipedia) | zpaq | zpaq -method 69 | 10963 bytes | -1394 bytes (-11.28%) |
| PPMd (Wikipedia) | 7zip | 7za a -mx=9 -m0=ppmd | 11103 bytes | -1254 bytes (-10.15%) |
| Brotli (Wikipedia) | brotli | brotli -q 11 | 11626 bytes | -731 bytes (-5.92%) |
| Burrows-Wheeler transform (Wikipedia) | bzip2 | bzip2 -9 | 11892 bytes | -465 bytes (-3.76%) |
| LZMA2 (Wikipedia) | xz | xz -9 | 12304 bytes | -53 bytes (-0.43%) |
| Zstandard (Wikipedia) | zstd | zstd -19 | 12408 bytes | +51 bytes (+0.41%) |