PNG tools overview

last updated on 12 May 2020, by Cédric Louvrier

this test is about how PNG optimizers use automatic image data reductions by using the default/same command to do lossless compression for web on specific data sets

compare — reductions

test specifications
type specs
machine FX-4100 @ 3.6 Ghz 8 Go RAM Windows 7 64-bit
binaries 64-bit binaries (32-bit if not not available)
files 24xreductions 72xrgba 10x256rgba 10x512rgba 12x512rgba 72xpaletted 40xpaletted 76xpaletted 192xpaletted
total 508 files, 11 203 743 bytes
processing time
tool time
pingo -s9 -faster 2.306s
pingo -sa -faster 2.792s
pingo -s0 4.196s
ECT -1 4.511s
pingo -s1 6.162s
pingo -s2 9.672s
pingo -s3 13.104s
pingo -s4 14.586s
ECT -3 15.485s
pingo -s1 -nomulti 18.969s
pingo -s5 19.219s
pingo -s6 24.304s
ECT -5 24.870s
oxipng -o 2 24.928s
pingo -s7 26.816s
pingo -s8 29.296s
pingo -s9 34.912s
PngOptimizer 35.003s
pingo -sa 38.864s
oxipng -o 6 40.732s
OptiPNG -o2 81.273s
TruePNG -o1 84.018s
ECT -9 145.291s
TruePNG -o1 -a1 435.362s
advdef -z4 586.587s
PNGOUT 712.459s
advpng -z4 757.142s
TruePNG -o4 1088.596s
pngwolf 1125.768s
OptiPNG -o7 1165.020s
ZopfliPNG 1265.807s
ECT -9 (brute) 10622.713s
savings
tool saved
pingo -sa 1 743 755 bytes
pingo -s9 1 737 250 bytes
pingo -s8 1 727 614 bytes
ECT -9 (brute) 1 726 532 bytes
pingo -s7 1 715 027 bytes
pingo -s6 1 703 367 bytes
pingo -s5 1 684 461 bytes
pingo -s4 1 665 553 bytes
ECT -9 1 644 292 bytes
pingo -s3 1 642 598 bytes
pingo -s2 1 610 935 bytes
pingo -s1 1 594 287 bytes
pingo -s1 -nomulti 1 594 287 bytes
ECT -5 1 583 645 bytes
ECT -3 1 550 293 bytes
ZopfliPNG 1 507 775 bytes
pngwolf 1 490 108 bytes
oxipng -o 6 1 481 311 bytes
oxipng -o 2 1 452 983 bytes
pingo -s0 1 446 388 bytes
pingo -sa -faster 1 264 839 bytes
TruePNG -o4 1 252 531 bytes
TruePNG -o1 -a1 1 204 227 bytes
pingo -s9 -faster 1 195 037 bytes
PNGOUT 1 192 545 bytes
TruePNG -o1 1 173 394 bytes
ECT -1 1 050 715 bytes
OptiPNG -o7 845 187 bytes
PngOptimizer 841 598 bytes
OptiPNG -o2 795 390 bytes
advdef -z4 643 426 bytes
advpng -z4 425 403 bytes

advdef — 2.1 (7deeafc)

advdef -z4 *.png
24x REDUCTIONS
stats in out saved
24.788s (17 MB) 599080 bytes 513950 bytes 85130 bytes
72x RGBA
stats size in size out saved
58.640s (20 MB) 1290666 bytes 1282856 bytes 7810 bytes
10x 256-RGBA
stats size in size out saved
19.203s (19 MB) 774349 bytes 749424 bytes 24925 bytes
10x 512-RGBA
stats size in size out saved
86.221s (38 MB) 3155632 bytes 3021742 bytes 133890 bytes
12x 512-RGBA
stats size in size out saved
109.106s (28 MB) 2996060 bytes 2802328 bytes 193732 bytes
72x PALETTED
stats size in size out saved
55.504s (10 MB) 450076 bytes 432817 bytes 17259 bytes
40x PALETTED
stats size in size out saved
47.408s (10 MB) 576682 bytes 543287 bytes 33395 bytes
76x PALETTED
stats size in size out saved
95.955s (11 MB) 702214 bytes 607700 bytes 94514 bytes
192x PALETTED
stats size in size out saved
89.762s (9 MB) 658984 bytes 606213 bytes 52771 bytes

advpng — 2.1 (7deeafc)

advpng -z4 *.png
24x REDUCTIONS
stats size in size out saved
19.531 (18 MB) 599080 bytes 555725 bytes 43355 bytes
72x RGBA
stats size in size out saved
61.011s (16 MB) 1290666 bytes 1289402 bytes 1264 bytes
10x 256-RGBA
stats size in size out saved
32.479s (12 MB) 774349 bytes 773350 bytes 999 bytes
10x 512-RGBA
stats size in size out saved
76.034s (27 MB) 3155632 bytes 3129918 bytes 25714 bytes
12x 512-RGBA
stats size in size out saved
89.294s (24 MB) 2996060 bytes 2996060 bytes 0 bytes
72x PALETTED
stats size in size out saved
55.972s (10 MB) 450076 bytes 430729 bytes 19347 bytes
40x PALETTED
stats size in size out saved
47.876s (10 MB) 576682 bytes 541807 bytes 34875 bytes
76x PALETTED
stats size in size out saved
97.702s (11 MB) 702214 bytes 607700 bytes 94514 bytes
192x PALETTED
stats size in size out saved
277.243s (10 MB) 658984 bytes 418774 bytes 240210 bytes

Efficient Compression Tool — 0.8.2 (ef8c2e8)

ECT -1

ect -1 -s --mt-file *.png
24x REDUCTIONS
stats size in size out saved
0.150s (7 MB) 599080 bytes 326724 bytes 272356 bytes
72x RGBA
stats size in size out saved
0.500s (7 MB) 1290666 bytes 1134014 bytes 156652 bytes
10x 256-RGBA
stats size in size out saved
0.284s (7 MB) 774349 bytes 765482 bytes 8867 bytes
10x 512-RGBA
stats size in size out saved
1.519s (11 MB) 3155632 bytes 3113275 bytes 42357 bytes
12x 512-RGBA
stats size in size out saved
2.084s (10 MB) 2996060 bytes 2803860 bytes 192200 bytes
72x PALETTED
stats size in size out saved
0.166s (6 MB) 450076 bytes 447653 bytes 2423 bytes
40x PALETTED
stats size in size out saved
0.138s (6 MB) 576682 bytes 574627 bytes 2055 bytes
76x PALETTED
stats size in size out saved
0.241s (6 MB) 702214 bytes 647117 bytes 55097 bytes
192x PALETTED
stats size in size out saved
0.349s (6 MB) 658984 bytes 340322 bytes 318662 bytes

ECT -3

ect -3 -s --mt-deflate --mt-file *.png
24x REDUCTIONS
stats size in size out saved
0.651s (18 MB) 599080 bytes 303864 bytes 295216 bytes
72x RGBA
stats size in size out saved
1.929s (21 MB) 1290666 bytes 1075669 bytes 214997 bytes
10x 256-RGBA
stats size in size out saved
1.000s (21 MB) 774349 bytes 740029 bytes 34320 bytes
10x 512-RGBA
stats size in size out saved
3.142s (38 MB) 3155632 bytes 2984222 bytes 171410 bytes
12x 512-RGBA
stats size in size out saved
3.415s (36 MB) 2996060 bytes 2630973 bytes 365087 bytes
72x PALETTED
stats size in size out saved
0.661s (18 MB) 450076 bytes 435572 bytes 14504 bytes
40x PALETTED
stats size in size out saved
1.100s (23 MB) 576682 bytes 546141 bytes 30541 bytes
76x PALETTED
stats size in size out saved
2.020s (35 MB) 702214 bytes 615433 bytes 86781 bytes
192x PALETTED
stats size in size out saved
1.971s (27 MB) 658984 bytes 321547 bytes 337437 bytes

ECT -5

ect -5 -s --mt-deflate --mt-file *.png
24x REDUCTIONS
stats size in size out saved
1.022s (21 MB) 599080 bytes 303938 bytes 295142 bytes
72x RGBA
stats size in size out saved
3.381s (26 MB) 1290666 bytes 1083500 bytes 207166 bytes
10x 256-RGBA
stats size in size out saved
1.524s (24 MB) 774349 bytes 742381 bytes 31968 bytes
10x 512-RGBA
stats size in size out saved
4.797s (58 MB) 3155632 bytes 2965642 bytes 189990 bytes
12x 512-RGBA
stats size in size out saved
5.962s (55 MB) 2996060 bytes 2615222 bytes 380838 bytes
72x PALETTED
stats size in size out saved
0.980s (20 MB) 450076 bytes 434123 bytes 15953 bytes
40x PALETTED
stats size in size out saved
1.427s (25 MB) 576682 bytes 543595 bytes 33087 bytes
76x PALETTED
stats size in size out saved
2.881s (40 MB) 702214 bytes 612572 bytes 89642 bytes
192x PALETTED
stats size in size out saved
3.587s (31 MB) 658984 bytes 319125 bytes 339859 bytes

ECT -9

ect -9 -s --mt-deflate --mt-file *.png
24x REDUCTIONS
stats size in size out saved
7.014s (30 MB) 599080 bytes 296414 bytes 302666 bytes
72x RGBA
stats size in size out saved
14.944 (36 MB) 1290666 bytes 1080709 bytes 209957 bytes
10x 256-RGBA
stats size in size out saved
6.976s (35 MB) 774349 bytes 738635 bytes 35714 bytes
10x 512-RGBA
stats size in size out saved
22.431s (78 MB) 3155632 bytes 2947041 bytes 208591 bytes
12x 512-RGBA
stats size in size out saved
26.848s (93 MB) 2996060 bytes 2592491 bytes 403569 bytes
72x PALETTED
stats size in size out saved
5.705s (26 MB) 450076 bytes 433513 bytes 16563 bytes
40x PALETTED
stats size in size out saved
7.890s (38 MB) 576682 bytes 542257 bytes 34425 bytes
76x PALETTED
stats size in size out saved
19.896s (64 MB) 702214 bytes 610989 bytes 91225 bytes
192x PALETTED
stats size in size out saved
32.616s (43 MB) 658984 bytes 317402 bytes 341582 bytes

ECT -9 (brute)

ect -9 -s --mt-deflate --mt-file --allfilters --pal_sort=120 *.png
24x REDUCTIONS
stats size in size out saved
663.781s (36 MB) 599080 bytes 285508 bytes 313572 bytes
72x RGBA
stats size in size out saved
168.917s (40 MB) 1290666 bytes 1055039 bytes 235627 bytes
10x 256-RGBA
stats size in size out saved
84.396s (35 MB) 774349 bytes 731992 bytes 42357 bytes
10x 512-RGBA
stats size in size out saved
247.104s (74 MB) 3155632 bytes 2940941 bytes 214691 bytes
12x 512-RGBA
stats size in size out saved
293.186s (81 MB) 2996060 bytes 2586130 bytes 409930 bytes
72x PALETTED
stats size in size out saved
514.426s (40 MB) 450076 bytes 422516 bytes 27560 bytes
40x PALETTED
stats size in size out saved
950.650s (42 MB) 576682 bytes 536173 bytes 40509 bytes
76x PALETTED
stats size in size out saved
2788.068s (47 MB) 702214 bytes 602481 bytes 99733 bytes
192x PALETTED
stats size in size out saved
4911.372s (75 MB) 658984 bytes 316431 bytes 342553 bytes

OptiPNG — 0.7.7

OptiPNG -o2

optipng -fix -o2 -strip all *.png
24x REDUCTIONS
stats size in size out saved
3.042s (4 MB) 599080 bytes 328979 bytes 270101 bytes
72x RGBA
stats size in size out saved
7.924s (4 MB) 1290666 bytes 1290103 bytes 563 bytes
10x 256-RGBA
stats size in size out saved
3.603s (4 MB) 774349 bytes 773352 bytes 997 bytes
10x 512-RGBA
stats size in size out saved
17.269s (5 MB) 3155632 bytes 3117504 bytes 38128 bytes
12x 512-RGBA
stats size in size out saved
27.440s (4 MB) 2996060 bytes 2889303 bytes 106757 bytes
72x PALETTED
stats size in size out saved
2.730s (4 MB) 450076 bytes 447650 bytes 2426 bytes
40x PALETTED
stats size in size out saved
4.789s (3 MB) 576682 bytes 574626 bytes 2056 bytes
76x PALETTED
stats size in size out saved
6.380s (3 MB) 702214 bytes 647023 bytes 55191 bytes
192x PALETTED
stats size in size out saved
8.096s (3 MB) 658984 bytes 339813 bytes 319171 bytes

OptiPNG -o7

optipng -fix -o7 -strip all *.png
24x REDUCTIONS
stats size in size out saved
38.656s (4 MB) 599080 bytes 321491 bytes 277589 bytes
72x RGBA
stats size in size out saved
126.890s (5 MB) 1290666 bytes 1290054 bytes 612 bytes
10x 256-RGBA
stats size in size out saved
55.910s (4 MB) 774349 bytes 773343 bytes 1006 bytes
10x 512-RGBA
stats size in size out saved
264.264s (5 MB) 3155632 bytes 3116879 bytes 38753 bytes
12x 512-RGBA
stats size in size out saved
428.532s (4 MB) 2996060 bytes 2847736 bytes 148324 bytes
72x PALETTED
stats size in size out saved
32.931s (4 MB) 450076 bytes 447616 bytes 2460 bytes
40x PALETTED
stats size in size out saved
65.972s (4 MB) 576682 bytes 574626 bytes 2056 bytes
76x PALETTED
stats size in size out saved
73.351s (4 MB) 702214 bytes 647009 bytes 55205 bytes
192x PALETTED
stats size in size out saved
78.514s (4 MB) 658984 bytes 339802 bytes 319182 bytes

oxipng — 3.0.0

oxipng -o 2

oxipng -o 2 --libdeflater --alpha --strip all *.png
24x REDUCTIONS
stats size in size out saved
1.107s (11 MB) 599080 bytes 309252 bytes 289828 bytes
72x RGBA
stats size in size out saved
2.979s (19 MB) 1290666 bytes 1092915 bytes 197751 bytes
10x 256-RGBA
stats size in size out saved
1.372s (13 MB) 774349 bytes 747511 bytes 26838 bytes
10x 512-RGBA
stats size in size out saved
5.506s (23 MB) 3155632 bytes 2999477 bytes 156155 bytes
12x 512-RGBA
stats size in size out saved
6.583s (26 MB) 2996060 bytes 2687298 bytes 308762 bytes
72x PALETTED
stats size in size out saved
0.780s (13 MB) 450076 bytes 423250 bytes 26826 bytes
40x PALETTED
stats size in size out saved
1.326s (9 MB) 576682 bytes 542559 bytes 34123 bytes
76x PALETTED
stats size in size out saved
2.636s (11 MB) 702214 bytes 620885 bytes 81329 bytes
192x PALETTED
stats size in size out saved
2.745s (10 MB) 658984 bytes 327613 bytes 331371 bytes

oxipng -o 6

oxipng -o 6 --libdeflater --alpha --strip all *.png
24x REDUCTIONS
stats size in size out saved
1.794s (20 MB) 599080 bytes 300061 bytes 299019 bytes
72x RGBA
stats size in size out saved
4.867s (27 MB) 1290666 bytes 1091777 bytes 198889 bytes
10x 256-RGBA
stats size in size out saved
2.121s (21 MB) 774349 bytes 747483 bytes 26866 bytes
10x 512-RGBA
stats size in size out saved
8.361s (41 MB) 3155632 bytes 2999141 bytes 156491 bytes
12x 512-RGBA
stats size in size out saved
10.124s (50 MB) 2996060 bytes 2672535 bytes 323525 bytes
72x PALETTED
stats size in size out saved
1.310s (17 MB) 450076 bytes 421838 bytes 28238 bytes
40x PALETTED
stats size in size out saved
2.511s (14 MB) 576682 bytes 541099 bytes 35583 bytes
76x PALETTED
stats size in size out saved
5.179s (16 MB) 702214 bytes 620885 bytes 81329 bytes
192x PALETTED
stats size in size out saved
4.586s (14 MB) 658984 bytes 327613 bytes 331371 bytes

pingo — 0.99 rc1

pingo -s0

pingo -s0 -strip *.png
24x REDUCTIONS
stats size in size out saved
0.234s (14 MB) 599080 bytes 290262 bytes 308818 bytes
72x RGBA
stats size in size out saved
0.530s (16 MB) 1290666 bytes 1098550 bytes 192116 bytes
10x 256-RGBA
stats size in size out saved
0.249s (14 MB) 774349 bytes 757406 bytes 16943 bytes
10x 512-RGBA
stats size in size out saved
0.904s (33 MB) 3155632 bytes 3026042 bytes 129590 bytes
12x 512-RGBA
stats size in size out saved
0.982s (41 MB) 2996060 bytes 2662250 bytes 333810 bytes
72x PALETTED
stats size in size out saved
0.280s (11 MB) 450076 bytes 417539 bytes 32537 bytes
40x PALETTED
stats size in size out saved
0.483s (11 MB) 576682 bytes 540273 bytes 36409 bytes
76x PALETTED
stats size in size out saved
0.624s (12 MB) 702214 bytes 631310 bytes 70904 bytes
192x PALETTED
stats size in size out saved
0.592s (10 MB) 658984 bytes 333723 bytes 325261 bytes

pingo -s1

pingo -s1 -strip *.png
24x REDUCTIONS
stats size in size out saved
0.343s (14 MB) 599080 bytes 283196 bytes 315884 bytes
72x RGBA
stats size in size out saved
0.733s (17 MB) 1290666 bytes 1083005 bytes 207661 bytes
10x 256-RGBA
stats size in size out saved
0.358s (18 MB) 774349 bytes 742660 bytes 31689 bytes
10x 512-RGBA
stats size in size out saved
1.357s (35 MB) 3155632 bytes 2980839 bytes 174793 bytes
12x 512-RGBA
stats size in size out saved
1.372s (41 MB) 2996060 bytes 2626489 bytes 369571 bytes
72x PALETTED
stats size in size out saved
0.343s (13 MB) 450076 bytes 412427 bytes 37649 bytes
40x PALETTED
stats size in size out saved
0.577s (12 MB) 576682 bytes 533067 bytes 43615 bytes
76x PALETTED
stats size in size out saved
0.951s (13 MB) 702214 bytes 618440 bytes 83774 bytes
192x PALETTED
stats size in size out saved
0.733s (11 MB) 658984 bytes 329089 bytes 329895 bytes

pingo -s3

pingo -s3 -strip *.png
24x REDUCTIONS
stats size in size out saved
0.686s (14 MB) 599080 bytes 281239 bytes 317841 bytes
72x RGBA
stats size in size out saved
1.950s (19 MB) 1290666 bytes 1075970 bytes 214696 bytes
10x 256-RGBA
stats size in size out saved
0.889s (20 MB) 774349 bytes 740385 bytes 33964 bytes
10x 512-RGBA
stats size in size out saved
3.198s (36 MB) 3155632 bytes 2967785 bytes 187847 bytes
12x 512-RGBA
stats size in size out saved
3.260s (38 MB) 2996060 bytes 2612342 bytes 383718 bytes
72x PALETTED
stats size in size out saved
0.514s (16 MB) 450076 bytes 409843 bytes 40233 bytes
40x PALETTED
stats size in size out saved
0.920s (15 MB) 576682 bytes 531064 bytes 45618 bytes
76x PALETTED
stats size in size out saved
1.544s (14 MB) 702214 bytes 615219 bytes 86995 bytes
192x PALETTED
stats size in size out saved
1.201s (12 MB) 658984 bytes 327298 bytes 331686 bytes

pingo -s5

pingo -s5 -strip *.png
24x REDUCTIONS
stats size in size out saved
1.060s (15 MB) 599080 bytes 280399 bytes 318681 bytes
72x RGBA
stats size in size out saved
3.151s (18 MB) 1290666 bytes 1072696 bytes 217970 bytes
10x 256-RGBA
stats size in size out saved
1.450s (22 MB) 774349 bytes 736420 bytes 37929 bytes
10x 512-RGBA
stats size in size out saved
4.477s (38 MB) 3155632 bytes 2962932 bytes 192700 bytes
12x 512-RGBA
stats size in size out saved
4.695s (41 MB) 2996060 bytes 2605983 bytes 390077 bytes
72x PALETTED
stats size in size out saved
0.686s (15 MB) 450076 bytes 407300 bytes 42776 bytes
40x PALETTED
stats size in size out saved
1.482s (15 MB) 576682 bytes 527145 bytes 49537 bytes
76x PALETTED
stats size in size out saved
2.308s (15 MB) 702214 bytes 604878 bytes 97336 bytes
192x PALETTED
stats size in size out saved
1.294s (13 MB) 658984 bytes 321529 bytes 337455 bytes

pingo -s7

pingo -s7 -strip *.png
24x REDUCTIONS
stats in out saved
1.544s (18 MB) 599080 bytes 278632 bytes 320448 bytes
72x RGBA
stats size in size out saved
4.243s (24 MB) 1290666 bytes 1063535 bytes 227131 bytes
10x 256-RGBA
stats size in size out saved
1.996s (26 MB) 774349 bytes 734407 bytes 39942 bytes
10x 512-RGBA
stats size in size out saved
5.834s (64 MB) 3155632 bytes 2957668 bytes 197964 bytes
12x 512-RGBA
stats size in size out saved
6.864s (47 MB) 2996060 bytes 2604966 bytes 391094 bytes
72x PALETTED
stats size in size out saved
1.092s (16 MB) 450076 bytes 403868 bytes 46208 bytes
40x PALETTED
stats size in size out saved
1.965s (19 MB) 576682 bytes 523554 bytes 53128 bytes
76x PALETTED
stats size in size out saved
3.057s (18 MB) 702214 bytes 602681 bytes 99533 bytes
192x PALETTED
stats size in size out saved
1.762s (14 MB) 658984 bytes 319405 bytes 339579 bytes

pingo -s9

pingo -s9 -strip *.png
24x REDUCTIONS
stats in out saved
1.856s (21 MB) 599080 bytes 278101 bytes 320979 bytes
72x RGBA
stats size in size out saved
5.054s (24 MB) 1290666 bytes 1062902 bytes 227764 bytes
10x 256-RGBA
stats size in size out saved
2.433s (30 MB) 774349 bytes 733536 bytes 40813 bytes
10x 512-RGBA
stats size in size out saved
8.127s (74 MB) 3155632 bytes 2950221 bytes 205411 bytes
12x 512-RGBA
stats size in size out saved
9.687s (61 MB) 2996060 bytes 2596475 bytes 399585 bytes
72x PALETTED
stats size in size out saved
1.123s (17 MB) 450076 bytes 403843 bytes 46233 bytes
40x PALETTED
stats size in size out saved
2.418s (18 MB) 576682 bytes 519964 bytes 56718 bytes
76x PALETTED
stats size in size out saved
3.556s (19 MB) 702214 bytes 602309 bytes 99905 bytes
192x PALETTED
stats size in size out saved
2.168s (15 MB) 658984 bytes 319142 bytes 339842 bytes

pingo -sa

pingo -sa -strip *.png
24x REDUCTIONS
stats in out saved
2.192s (19 MB) 599080 bytes 277442 bytes 321638 bytes
72x RGBA
stats size in size out saved
5.998s (25 MB) 1290666 bytes 1060864 bytes 229802 bytes
10x 256-RGBA
stats size in size out saved
2.956s (29 MB) 774349 bytes 734131 bytes 40218 bytes
10x 512-RGBA
stats size in size out saved
9.464s (59 MB) 3155632 bytes 2947372 bytes 208260 bytes
12x 512-RGBA
stats size in size out saved
11.038s (57 MB) 2996060 bytes 2595675 bytes 400385 bytes
72x PALETTED
stats size in size out saved
1.186s (16 MB) 450076 bytes 403612 bytes 46464 bytes
40x PALETTED
stats size in size out saved
2.338s (19 MB) 576682 bytes 519964 bytes 56718 bytes
76x PALETTED
stats size in size out saved
3.501s (20 MB) 702214 bytes 602309 bytes 99905 bytes
192x PALETTED
stats size in size out saved
2.198s (15 MB) 658984 bytes 318619 bytes 340365 bytes

PngOptimizer — 2.5.1 (30e532f)

pngoptimizer -file:*.png
24x REDUCTIONS
stats size in size out saved
1.375s (7 MB) 599080 bytes 334275 bytes 264805 bytes
72x RGBA
stats size in size out saved
2.920s (8 MB) 1290666 bytes 1147466 bytes 143200 bytes
10x 256-RGBA
stats size in size out saved
1.270s (6 MB) 774349 bytes 771757 bytes 2592 bytes
10x 512-RGBA
stats size in size out saved
6.453s (13 MB) 3155632 bytes 3118520 bytes 37112 bytes
12x 512-RGBA
stats size in size out saved
9.356s (13 MB) 2996060 bytes 2897845 bytes 98215 bytes
72x PALETTED
stats size in size out saved
1.866s (9 MB) 450076 bytes 434075 bytes 16001 bytes
40x PALETTED
stats size in size out saved
4.312s (5 MB) 576682 bytes 568957 bytes 7725 bytes
76x PALETTED
stats size in size out saved
3.440s (5 MB) 702214 bytes 644444 bytes 57770 bytes
192x PALETTED
stats size in size out saved
4.011s (6 MB) 658984 bytes 444806 bytes 214178 bytes

PNGOUT — 02/13/2015

pngout in.png out.png
24x REDUCTIONS
stats size in size out saved
30.055s (4 MB) 599080 bytes 322910 bytes 276170 bytes
72x RGBA
stats size in size out saved
71.141s (4 MB) 1290666 bytes 1288930 bytes 1736 bytes
10x 256-RGBA
stats size in size out saved
57.138s (4 MB) 774349 bytes 748325 bytes 26024 bytes
10x 512-RGBA
stats size in size out saved
199.187s (4 MB) 3155632 bytes 3013659 bytes 141973 bytes
12x 512-RGBA
stats size in size out saved
214.843s (4 MB) 2996060 bytes 2712973 bytes 283087 bytes
72x PALETTED
stats size in size out saved
12.931s (4 MB) 450076 bytes 430216 bytes 19860 bytes
40x PALETTED
stats size in size out saved
18.717s (4 MB) 576682 bytes 548020 bytes 28662 bytes
76x PALETTED
stats size in size out saved
44.164s (4 MB) 702214 bytes 618435 bytes 83779 bytes
192x PALETTED
stats size in size out saved
37.283s (4 MB) 658984 bytes 327730 bytes 331254 bytes

pngwolf — 31b3399

pngwolf --in=x --out=x --max-evaluations=1 --estimator=libdeflate,level=4 --out-deflate=zopfli,iter=15 --normalize-alpha --strip-optional
24x REDUCTIONS
stats size in size out saved
43.840s (4 MB) 599080 bytes 323757 bytes 275323 bytes
72x RGBA
stats size in size out saved
99.342s (4 MB) 1290666 bytes 1069750 bytes 220916 bytes
10x 256-RGBA
stats size in size out saved
33.620s (4 MB) 774349 bytes 737697 bytes 36652 bytes
10x 512-RGBA
stats size in size out saved
130.414s (4 MB) 3155632 bytes 2960430 bytes 195202 bytes
12x 512-RGBA
stats size in size out saved
171.511s (4 MB) 2996060 bytes 2620193 bytes 375867 bytes
72x PALETTED
stats size in size out saved
79.418s (4 MB) 450076 bytes 430544 bytes 19532 bytes
40x PALETTED
stats size in size out saved
80.757s (4 MB) 576682 bytes 541502 bytes 35180 bytes
76x PALETTED
stats size in size out saved
154.108s (4 MB) 702214 bytes 607322 bytes 94892 bytes
192x PALETTED
stats size in size out saved
332.758s (5 MB) 658984 bytes 422440 bytes 236544 bytes

TruePNG — 0.6.2.5

truepng -o1 -md remove all *.png
24x REDUCTIONS
stats size in size out saved
3.931s 599080 bytes 299764 bytes 299316 bytes
72x RGBA
stats size in size out saved
6.208 1290666 bytes 1126157 bytes 164509 bytes
10x 256-RGBA
stats size in size out saved
3.057s (7 MB) 774349 bytes 762440 bytes 11909 bytes
10x 512-RGBA
stats size in size out saved
12.386s (10 MB) 3155632 bytes 3089419 bytes 66213 bytes
12x 512-RGBA
stats size in size out saved
19.578s (11 MB) 2996060 bytes 2765089 bytes 230971 bytes
72x PALETTED
stats size in size out saved
4.945s (9 MB) 450076 bytes 429358 bytes 20718 bytes
40x PALETTED
stats size in size out saved
9.625s (8 MB) 576682 bytes 556582 bytes 20100 bytes
76x PALETTED
stats size in size out saved
14.367s (8 MB) 702214 bytes 662307 bytes 39907 bytes
192x PALETTED
stats size in size out saved
9.921s (6 MB) 658984 bytes 339233 bytes 319751 bytes

TruePNG -a1

truepng -o1 -a1 -md remove all *.png
24x REDUCTIONS
stats size in size out saved
11.622s (9 MB) 599080 bytes 296512 bytes 302568 bytes
72x RGBA
stats size in size out saved
29.172s (9 MB) 1290666 bytes 1120539 bytes 170127 bytes
10x 256-RGBA
stats size in size out saved
15.880s (8 MB) 774349 bytes 760908 bytes 13441 bytes
10x 512-RGBA
stats size in size out saved
68.515s (15 MB) 3155632 bytes 3078398 bytes 77234 bytes
12x 512-RGBA
stats size in size out saved
107.608s (15 MB) 2996060 bytes 2764369 bytes 231691 bytes
72x PALETTED
stats size in size out saved
24.835s (8 MB) 450076 bytes 427710 bytes 22366 bytes
40x PALETTED
stats size in size out saved
46.363s (9 MB) 576682 bytes 555051 bytes 21631 bytes
76x PALETTED
stats size in size out saved
71.635s (8 MB) 702214 bytes 656796 bytes 45418 bytes
192x PALETTED
stats size in size out saved
59.732s (7 MB) 658984 bytes 339233 bytes 319751 bytes

TruePNG -a4

truepng -o4 *.png
24x REDUCTIONS
stats size in size out saved
25.755s (9 MB) 599080 bytes 292264 bytes 306816 bytes
72x RGBA
stats size in size out saved
99.637s (9 MB) 1290666 bytes 1112954 bytes 177712 bytes
10x 256-RGBA
stats size in size out saved
53.445s (8 MB) 774349 bytes 759870 bytes 14479 bytes
10x 512-RGBA
stats size in size out saved
241.192s (15 MB) 3155632 bytes 3069945 bytes 85687 bytes
12x 512-RGBA
stats size in size out saved
376.709s (15 MB) 2996060 bytes 2752216 bytes 243844 bytes
72x PALETTED
stats size in size out saved
39.982s (8 MB) 450076 bytes 425748 bytes 24328 bytes
40x PALETTED
stats size in size out saved
83.818s (9 MB) 576682 bytes 551253 bytes 25429 bytes
76x PALETTED
stats size in size out saved
91.213s (8 MB) 702214 bytes 649762 bytes 52452 bytes
192x PALETTED
stats size in size out saved
76.845s (7 MB) 658984 bytes 339200 bytes 319784 bytes

ZopfliPNG — (64c6f36)

zopflipng --lossy_transparent *.png
24x REDUCTIONS
stats size in size out saved
42.499s (19 MB) 599080 bytes 297349 bytes 301731 bytes
72x RGBA
stats size in size out saved
84.485s (21 MB) 1290666 bytes 1087500 bytes 203166 bytes
10x 256-RGBA
stats size in size out saved
20.230s (21 MB) 774349 bytes 745240 bytes 29109 bytes
10x 512-RGBA
stats size in size out saved
96.561s (40 MB) 3155632 bytes 2981527 bytes 174105 bytes
12x 512-RGBA
stats size in size out saved
134.445s (39 MB) 2996060 bytes 2676708 bytes 319352 bytes
72x PALETTED
stats size in size out saved
87.680s (12 MB) 450076 bytes 434054 bytes 16022 bytes
40x PALETTED
stats size in size out saved
80.799s (11 MB) 576682 bytes 543217 bytes 33465 bytes
76x PALETTED
stats size in size out saved
152.849s (16 MB) 702214 bytes 612350 bytes 89864 bytes
192x PALETTED
stats size in size out saved
566.259s (13 MB) 658984 bytes 318023 bytes 340961 bytes

reductions

stats description
/cN colourtype
/fN filtering
/dN bitdepth
/pN n = reuse 0 = resort 1 = resort+filter
/aN n = keep 0 = 0,0,0 1 = transform
/mN 0 = not removed 1 = removed

results

tool successed failed unoptimized saved
pingo -sa 23 1 0 321638 bytes
pingo -s0 23 1 0 308818 bytes
TruePNG -o4 21 3 1 306816 bytes
TruePNG -o1 -a1 21 3 1 302568 bytes
TruePNG -o1 20 4 1 299316 bytes
ECT -5 17 7 0 295142 bytes
ZopfliPNG 17 7 0 301731 bytes
ECT -9 16 8 0 302666 bytes
oxipng -o 6 14 10 1 299019 bytes
oxipng -o 2 14 10 1 289828 bytes
OptiPNG -o7 14 10 3 277589 bytes
ECT -1 14 10 2 272356 bytes
OptiPNG -o2 14 10 4 270101 bytes
PngOptimizer 14 10 3 264805 bytes
PNGOUT 7 17 4 276170 bytes
pngwolf 3 21 0 275323 bytes
advdef -z4 1 23 8 85130 bytes
advpng -z4 1 23 10 43355 bytes

results

advdef -z4
01-ct-c3-c0.png 1105 bytes /c3 /f0 /d8 1105 bytes
02-ct-c4-c0.png 12020 bytes /c4 /f5 11426 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f0 /d8 1105 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 18687 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 27671 bytes
06-ct-c2-c3.png 27664 bytes /c2 /f0 21862 bytes
07-ct-c4-c3.png 14837 bytes /c4 /f0 11691 bytes
08-ct-c6-c3.png 22434 bytes /c6 /f0 18584 bytes
09-ct-c6-c4.png 17330 bytes /c6 /f5 12696 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /pn 2975 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d8 /pn 5750 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /pn 5175 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /pn 18326 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /pn 21621 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /pn 29536 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d8 161 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5015 bytes
18-filtering.png 181109 bytes /c2 /f0 181109 bytes
19-dt-000.png 25878 bytes /c6 /f0 /an 25878 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /an 47121 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 /an 31778 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /an 10104 bytes
23-dt-rgb-c3.png 25110 bytes /c6 /f0 25110 bytes
24-chunks.png 1420 bytes /c0 /f0 /d8 /m0 1312 bytes
advpng -z4
01-ct-c3-c0.png 1105 bytes /c3 /f0 /d8 1105 bytes
02-ct-c4-c0.png 12020 bytes /c4 /f5 12020 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f0 /d8 1105 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 16928 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 29142 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 15331 bytes
07-ct-c4-c3.png 14837 bytes /c4 /f03 14837 bytes
08-ct-c6-c3.png 22434 bytes /c6 /f0 17161 bytes
09-ct-c6-c4.png 17330 bytes /c6 /f0 10892 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /pn 2756 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d8 /pn 5126 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /pn 4764 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /pn 17525 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /pn 20532 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /pn 28540 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d8 159 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d8 4562 bytes
18-filtering.png 181109 bytes /c2 /f0 181109 bytes
19-dt-000.png 25878 bytes /c6 /f0 /an 25443 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /an 47121 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 /an 37272 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /an 37147 bytes
23-dt-rgb-c3.png 25110 bytes /c6 /f0 23728 bytes
24-chunks.png 1420 bytes /c0 /d8 /m0 1420 bytes
ECT -1 -s
01-ct-c3-c0.png 1105 bytes /c0 /f1 /d8 70 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8774 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f1 /d8 850 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 18685 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 26278 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 16649 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f0 /d8 10386 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f5 /d8 13564 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f0 10310 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2311 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d8 /p0 5762 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 5176 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 18321 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 21550 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 29499 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 147 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5015 bytes
18-filtering.png 181109 bytes /c2 /f5 573 bytes
19-dt-000.png 25878 bytes /c6 /f0 /a0 23506 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /a0 44349 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 37272 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /a0 11723 bytes
23-dt-rgb-c3.png 25110 bytes /c3 /f5 /d8 /p2 15887 bytes
24-chunks.png 1420 bytes /c0 /f0 /d8 /m1 67 bytes
ECT -3 -s
01-ct-c3-c0.png 1105 bytes /c0 /f1 /d8 79 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8211 bytes
03-ct-c3-c2.png 1105 bytes /c2 /f1 83 bytes
04-ct-c6-c2.png 22993 bytes /c2 /f0 16069 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 25976 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 15401 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f0 /d8 9749 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f0 /d8 13301 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f0 9409 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2099 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d4 /p0 1369 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 4403 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 17483 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 20702 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 28184 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 145 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5013 bytes
18-filtering.png 181109 bytes /c2 /f5 550 bytes
19-dt-000.png 25878 bytes /c6 /f0 /a0 22497 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /a1 42197 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f5 /a1 26090 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /a1 9551 bytes
23-dt-rgb-c3.png 25110 bytes /c6 /f0 25110 bytes
24-chunks.png 1420 bytes /c0 /f0 /d1 /m1 67 bytes
ECT -5 -s
01-ct-c3-c0.png 1105 bytes /c0 /f4 /d8 80 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8180 bytes
03-ct-c3-c2.png 1105 bytes /c2 /f4 84 bytes
04-ct-c6-c2.png 22993 bytes /c2 /f0 16009 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 28896 bytes
06-ct-c2-c3.png 27664 bytes /c6 /f0 /d8 15345 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f0 /d8 9701 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f0 /d8 13285 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f0 9174 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2088 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d4 /p0 1352 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 4371 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 17461 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 20655 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 28121 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 145 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 4995 bytes
18-filtering.png 181109 bytes /c2 /f4 550 bytes
19-dt-000.png 25878 bytes /c6 /f0 /a0 22462 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /a1 41898 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f5 /a1 25877 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /a1 9427 bytes
23-dt-rgb-c3.png 25110 bytes /c6 /f5 23735 bytes
24-chunks.png 1420 bytes /c0 /f4 /d1 /m1 67 bytes
ECT -9 -s
01-ct-c3-c0.png 1105 bytes /c0 /f4 /d8 70 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8151 bytes
03-ct-c3-c2.png 1105 bytes /c2 /f4 77 bytes
04-ct-c6-c2.png 22993 bytes /c2 /f0 15983 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 28816 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 15311 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f0 /d8 9659 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f0 /d8 13280 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f5 8235 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2083 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d4 /p0 1340 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 4354 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 17431 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 20623 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 28077 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 145 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 4978 bytes
18-filtering.png 181109 bytes /c2 /f4 544 bytes
19-dt-000.png 25878 bytes /c6 /f0 /a0 22329 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /a1 41755 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f5 /a1 25790 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /a1 9333 bytes
23-dt-rgb-c3.png 25110 bytes /c3 /f0 /d8 18032 bytes
24-chunks.png 1420 bytes /c0 /f0 /d1 /m1 67 bytes
OptiPNG -o2
01-ct-c3-c0.png 1105 bytes /c0 /f1 /d8 70 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8765 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f1 /d8 850 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 18685 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 26274 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 16640 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f5 /d8 10349 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f5 /d8 13560 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f5 9767 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2293 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d8 /p0 5749 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 5173 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 18317 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 21550 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 29499 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 146 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5015 bytes
18-filtering.png 181109 bytes /c2 /f5 573 bytes
19-dt-000.png 25878 bytes /c6 /f0 /an 25878 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /an 47121 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 /an 37272 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f5 /na 9487 bytes
23-dt-rgb-c3.png 25110 bytes /c3 /f5 /d8 15879 bytes
24-chunks.png 1420 bytes /c0 /f0 /d8 /m1 67 bytes
OptiPNG -o7
01-ct-c3-c0.png 1105 bytes /c0 /f1 /d8 70 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f0 /d8 8765 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f1 /d8 850 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 18685 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 26256 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 16640 bytes
07-ct-c4-c3.png 14837 bytes /c3 /f5 /d8 10349 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f5 /d8 13560 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f1 9121 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2293 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d8 /p0 5749 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 5173 bytes
13-c3-color-filter.png 18326 bytes /c3 /f0 /d8 /p0 18316 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f0 /d8 /p0 21550 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 29482 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 146 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5015 bytes
18-filtering.png 181109 bytes /c2 /f4 572 bytes
19-dt-000.png 25878 bytes /c6 /f0 25878 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /an 47121 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 /an 30503 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f4 /na 9451 bytes
23-dt-rgb-c3.png 25110 bytes /c3 /f5 /d8 15879 bytes
24-chunks.png 1420 bytes /c0 /f0 /d8 /m1 67 bytes
oxipng -o 2
01-ct-c3-c0.png 1105 bytes /c3 /f1 /d8 /n0 849 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f5 /d8 8346 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f1 /d8 850 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 17252 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 26364 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 15628 bytes
07-ct-c4-c3.png 14837 bytes /c4 /f0 10874 bytes
08-ct-c6-c3.png 22434 bytes /c3 /f0 /d8 13205 bytes
09-ct-c6-c4.png 17330 bytes /c4 /f1 8396 bytes
10-c3-bad-entries.png 3517 bytes /c3 /f0 /d8 /p0 2224 bytes
11-c3-duplicate.png 7937 bytes /c3 /f0 /d4 /p0 1418 bytes
12-c3-trans-first.png 5977 bytes /c3 /f0 /d8 /p0 4602 bytes
13-c3-color-filter.png 18326 bytes /c3 /f5 /d8 /p1 17558 bytes
14-c3-color-filter-trans.png 22102 bytes /c3 /f5 /d8 /p1 17781 bytes
15-c3-color-filter-trans-first.png 32098 bytes /c3 /f0 /d8 /p0 28341 bytes
16-c3-8bits-4bits.png 421 bytes /c3 /f0 /d4 143 bytes
17-c3-4bits-8bits.png 5015 bytes /c3 /f0 /d4 5015 bytes
18-filtering.png 181109 bytes /c2 /f4 758 bytes
19-dt-000.png 25878 bytes /c6 /f0 /a1 22841 bytes
20-dt-rgb-mod-free.png 47121 bytes /c6 /f5 /a1 43541 bytes
21-dt-rgb-mod-average.png 37272 bytes /c6 /f3 /a0 28507 bytes
22-dt-rgb-keep.png 37147 bytes /c6 /f4 /a1 10038 bytes
23-dt-rgb-c3.png 25110 bytes /c3 /f5 /d8 15463 bytes
24-chunks.png 1420 bytes /c0 /f0 /d8 /m1 67 bytes
oxipng -o 6
01-ct-c3-c0.png 1105 bytes /c3 /f1 /d8 849 bytes
02-ct-c4-c0.png 12020 bytes /c0 /f5 /d8 8346 bytes
03-ct-c3-c2.png 1105 bytes /c3 /f1 /d8 850 bytes
04-ct-c6-c2.png 22993 bytes /c6 /f0 17252 bytes
05-ct-c0-c3.png 29142 bytes /c0 /f5 /d8 26364 bytes
06-ct-c2-c3.png 27664 bytes /c3 /f0 /d8 15628 bytes
07-ct-c4-c3.png 14837 bytes /c4 /f0 10874 bytes
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pingo -s0
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pingo -sa
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PngOptimizer
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PNGOUT
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pngwolf
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TruePNG -o1
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TruePNG -o1 -a1
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TruePNG -o4
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ZopfliPNG
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