quicky.club — trying out different image encoders & settings * generated at Sun Jul 12 05:03:16 PM UTC 2026 - see RAW-data as JSON

SSimulacra2-100-50 0 50 10002000400060000.00%9.1%18%27%SSimulacra2-rating (higher is better)Filesize in bytes (lower is better)Percentage of original file size (22.020 bytes)avif/avifencavif/avifencSSimulacra2_plot_2heif/heifencheif/heifencSSimulacra2_plot_4jpeg/cjpeglijpeg/cjpegliSSimulacra2_plot_6jpeg/guetzlijpeg/guetzlijpeg/mozjpegjpeg/mozjpegjxl/cjxljxl/cjxlSSimulacra2_plot_10png/pngquantpng/pngquantSSimulacra2_plot_12webp/cwebpwebp/cwebpSSimulacra2_plot_14SSimulacra2_plot_15Comparison of perceived image similarity for ssimulacra2 in context of file size for 274 samples (all results) SSimulacra2-20 0 20 40 60 801000150020004.5%6.8%9.1%avif-all-avifenc-q21heif-all-heifenc-q26jpeg-all-cjpegli-q16jxl-all-cjxl-q21png-all-pngquant-q5webp-all-cwebp-q20SSimulacra2-rating (higher is better)Filesize in bytes (lower is better)Percentage of original file size (22.020 bytes)avif/avifencavif/avifencSSimulacra2_plot_2 SSimulacra2_plot_3heif/heifencheif/heifencSSimulacra2_plot_5 SSimulacra2_plot_6jpeg/cjpeglijpeg/cjpegliSSimulacra2_plot_8 SSimulacra2_plot_9jpeg/mozjpegjpeg/mozjpegSSimulacra2_plot_11 jxl/cjxljxl/cjxlSSimulacra2_plot_13 SSimulacra2_plot_14png/pngquantpng/pngquantSSimulacra2_plot_16 SSimulacra2_plot_17webp/cwebpwebp/cwebpSSimulacra2_plot_19 SSimulacra2_plot_20SSimulacra2_plot_21Comparison of perceived image similarity for ssimulacra2 in context of file size for 164 samples (selection)

Results, final selection: "good enough" — sorted by imagesize

Family Size [bytes] Settings Bits per pixel Reduction compared to baseline image size
jxl
 1.026 jxl-all-cjxl-q21 0.501
81.36%
avif
 1.055 avif-all-avifenc-q21 0.515
80.84%
webp
 1.082 webp-all-cwebp-q20 0.528
80.35%
heif
 1.159 heif-all-heifenc-q26 0.566
78.95%
jpeg
 1.649 jpeg-all-cjpegli-q16 0.805
70.05%
png
 2.132 png-all-pngquant-q5 1.041
61.27%
jpeg
 5.505 reduced to 25.00% = of resolution 2.688 with 0.02 megapx = 128×128 pixels (theoretical baseline size)
jpeg
 22.020 original image 2.688 with 0.07 megapx = 256×256 pixels and 22.557 different colors

HTML example usage

0x1337.org cdn.169.run
encoder-settings descriptive 
<picture>
  <source type="image/jxl"  srcset="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.jxl">
  <source type="image/avif" srcset="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.avif">
  <source type="image/heif" srcset="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.heif">
  <source type="image/jpeg" srcset="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.jpeg">
  <source type="image/webp" srcset="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.webp">

  <img src="https://cdn.169.run/W7/83/4P/child-sun-face-paint-red-sweater/768px.jpeg"
       width="768" height="512"
       alt="Person with a painted sun design around one eye, colorful hair ribbons, and a bright patterned sweater."
       loading="lazy" decoding="async">
</picture>

Visual comparison side-by-side (final selection: "good enough")

original variant info
Original Variant family: jxl 
file size: 1.026 bytes
ba: 80 ss: 51.95
settings: jxl-all-cjxl-q21
bpp: 0.501
useable: true
Original Variant family: avif 
file size: 1.055 bytes
ba: 80 ss: 52.05
settings: avif-all-avifenc-q21
bpp: 0.515
useable: true
Original Variant family: webp 
file size: 1.082 bytes
ba: 80 ss: 50.76
settings: webp-all-cwebp-q20
bpp: 0.528
useable: true
Original Variant family: heif 
file size: 1.159 bytes
ba: 80 ss: 51.76
settings: heif-all-heifenc-q26
bpp: 0.566
useable: true
Original Variant family: jpeg 
file size: 1.649 bytes
ba: 80 ss: 50.61
settings: jpeg-all-cjpegli-q16
bpp: 0.805
useable: true
Original Variant family: png 
file size: 2.132 bytes
ba: 80 ss: 50.71
settings: png-all-pngquant-q5
bpp: 1.041
useable: true
Zoom: 3× (Z)

Visual comparison side-by-side (all) — sorted by imagesize

original variant info
Original Variant family: jxl 
file size: 830 bytes
ba: 80 ss: 43.37
settings: jxl-all-cjxl-q16
bpp: 0.405
useable: false
Original Variant family: jxl 
file size: 865 bytes
ba: 80 ss: 45.16
settings: jxl-all-cjxl-q17
bpp: 0.422
useable: false
Original Variant family: jxl 
file size: 925 bytes
ba: 80 ss: 47.68
settings: jxl-all-cjxl-q18
bpp: 0.452
useable: false
Original Variant family: webp 
file size: 934 bytes
ba: 80 ss: 45.79
settings: webp-all-cwebp-q13
bpp: 0.456
useable: false
Original Variant family: avif 
file size: 937 bytes
ba: 80 ss: 44.83
settings: avif-all-avifenc-q17
bpp: 0.458
useable: false
Original Variant family: avif 
file size: 937 bytes
ba: 80 ss: 44.83
settings: avif-all-avifenc-q18
bpp: 0.458
useable: false
Original Variant family: jxl 
file size: 938 bytes
ba: 80 ss: 48.19
settings: jxl-all-cjxl-q19
bpp: 0.458
useable: false
Original Variant family: jxl 
file size: 952 bytes
ba: 80 ss: 49.69
settings: jxl-all-cjxl-q20
bpp: 0.465
useable: false
Original Variant family: webp 
file size: 958 bytes
ba: 80 ss: 45.18
settings: webp-all-cwebp-q14
bpp: 0.468
useable: false
Original Variant family: webp 
file size: 982 bytes
ba: 80 ss: 46.39
settings: webp-all-cwebp-q15
bpp: 0.479
useable: false
Original Variant family: heif 
file size: 983 bytes
ba: 80 ss: 44.15
settings: heif-all-heifenc-q19
bpp: 0.480
useable: false
Original Variant family: heif 
file size: 983 bytes
ba: 80 ss: 44.15
settings: heif-all-heifenc-q20
bpp: 0.480
useable: false
Original Variant family: avif 
file size: 985 bytes
ba: 80 ss: 49.22
settings: avif-all-avifenc-q19
bpp: 0.481
useable: false
Original Variant family: webp 
file size: 1.004 bytes
ba: 80 ss: 47.23
settings: webp-all-cwebp-q16
bpp: 0.490
useable: false
Original Variant family: webp 
file size: 1.024 bytes
ba: 80 ss: 47.61
settings: webp-all-cwebp-q18
bpp: 0.500
useable: false
Original Variant family: jxl 
file size: 1.026 bytes
ba: 80 ss: 51.95
settings: jxl-all-cjxl-q21
bpp: 0.501
useable: true
Original Variant family: webp 
file size: 1.036 bytes
ba: 80 ss: 47.81
settings: webp-all-cwebp-q17
bpp: 0.506
useable: false
Original Variant family: webp 
file size: 1.038 bytes
ba: 80 ss: 47.22
settings: webp-all-cwebp-q19
bpp: 0.507
useable: false
Original Variant family: jxl 
file size: 1.042 bytes
ba: 80 ss: 54.44
settings: jxl-all-cjxl-q22
bpp: 0.509
useable: true
Original Variant family: heif 
file size: 1.046 bytes
ba: 80 ss: 47.72
settings: heif-all-heifenc-q21
bpp: 0.511
useable: false
Original Variant family: heif 
file size: 1.046 bytes
ba: 80 ss: 47.72
settings: heif-all-heifenc-q22
bpp: 0.511
useable: false
Original Variant family: avif 
file size: 1.055 bytes
ba: 80 ss: 52.05
settings: avif-all-avifenc-q20
bpp: 0.515
useable: true
Original Variant family: avif 
file size: 1.055 bytes
ba: 80 ss: 52.05
settings: avif-all-avifenc-q21
bpp: 0.515
useable: true
Original Variant family: avif 
file size: 1.062 bytes
ba: 80 ss: 53.84
settings: avif-all-avifenc-q22
bpp: 0.519
useable: true
Original Variant family: avif 
file size: 1.062 bytes
ba: 80 ss: 53.84
settings: avif-all-avifenc-q23
bpp: 0.519
useable: true
Original Variant family: webp 
file size: 1.082 bytes
ba: 80 ss: 50.76
settings: webp-all-cwebp-q20
bpp: 0.528
useable: true
Original Variant family: webp 
file size: 1.090 bytes
ba: 80 ss: 53.60
settings: webp-all-cwebp-q21
bpp: 0.532
useable: true
Original Variant family: jxl 
file size: 1.096 bytes
ba: 80 ss: 56.11
settings: jxl-all-cjxl-q23
bpp: 0.535
useable: true
Original Variant family: heif 
file size: 1.098 bytes
ba: 80 ss: 47.04
settings: heif-all-heifenc-q23
bpp: 0.536
useable: false
Original Variant family: heif 
file size: 1.098 bytes
ba: 80 ss: 47.04
settings: heif-all-heifenc-q24
bpp: 0.536
useable: false
Original Variant family: jxl 
file size: 1.117 bytes
ba: 80 ss: 56.24
settings: jxl-all-cjxl-q24
bpp: 0.545
useable: true
Original Variant family: webp 
file size: 1.124 bytes
ba: 80 ss: 54.10
settings: webp-all-cwebp-q22
bpp: 0.549
useable: true
Original Variant family: webp 
file size: 1.134 bytes
ba: 80 ss: 52.83
settings: webp-all-cwebp-q23
bpp: 0.554
useable: true
Original Variant family: avif 
file size: 1.135 bytes
ba: 80 ss: 55.20
settings: avif-all-avifenc-q24
bpp: 0.554
useable: true
Original Variant family: heif 
file size: 1.159 bytes
ba: 80 ss: 51.76
settings: heif-all-heifenc-q25
bpp: 0.566
useable: true
Original Variant family: heif 
file size: 1.159 bytes
ba: 80 ss: 51.76
settings: heif-all-heifenc-q26
bpp: 0.566
useable: true
Original Variant family: webp 
file size: 1.160 bytes
ba: 80 ss: 53.13
settings: webp-all-cwebp-q24
bpp: 0.566
useable: true
Original Variant family: avif 
file size: 1.177 bytes
ba: 80 ss: 59.06
settings: avif-all-avifenc-q25
bpp: 0.575
useable: true
Original Variant family: avif 
file size: 1.177 bytes
ba: 80 ss: 59.06
settings: avif-all-avifenc-q26
bpp: 0.575
useable: true
Original Variant family: jxl 
file size: 1.178 bytes
ba: 80 ss: 57.76
settings: jxl-all-cjxl-q25
bpp: 0.575
useable: true
Original Variant family: webp 
file size: 1.186 bytes
ba: 80 ss: 54.56
settings: webp-all-cwebp-q25
bpp: 0.579
useable: true
Original Variant family: avif 
file size: 1.188 bytes
ba: 80 ss: 58.03
settings: avif-all-avifenc-q27
bpp: 0.580
useable: true
Original Variant family: jxl 
file size: 1.198 bytes
ba: 80 ss: 57.31
settings: jxl-all-cjxl-q26
bpp: 0.585
useable: true
Original Variant family: webp 
file size: 1.204 bytes
ba: 80 ss: 55.60
settings: webp-all-cwebp-q26
bpp: 0.588
useable: true
Original Variant family: webp 
file size: 1.226 bytes
ba: 80 ss: 55.43
settings: webp-all-cwebp-q27
bpp: 0.599
useable: true
Original Variant family: jxl 
file size: 1.234 bytes
ba: 80 ss: 59.41
settings: jxl-all-cjxl-q28
bpp: 0.603
useable: true
Original Variant family: webp 
file size: 1.252 bytes
ba: 80 ss: 56.06
settings: webp-all-cwebp-q28
bpp: 0.611
useable: true
Original Variant family: heif 
file size: 1.261 bytes
ba: 80 ss: 55.19
settings: heif-all-heifenc-q27
bpp: 0.616
useable: true
Original Variant family: heif 
file size: 1.261 bytes
ba: 80 ss: 55.19
settings: heif-all-heifenc-q28
bpp: 0.616
useable: true
Original Variant family: webp 
file size: 1.276 bytes
ba: 80 ss: 56.79
settings: webp-all-cwebp-q29
bpp: 0.623
useable: true
Original Variant family: webp 
file size: 1.282 bytes
ba: 80 ss: 57.52
settings: webp-all-cwebp-q30
bpp: 0.626
useable: true
Original Variant family: jxl 
file size: 1.283 bytes
ba: 80 ss: 60.27
settings: jxl-all-cjxl-q29
bpp: 0.626
useable: true
Original Variant family: jxl 
file size: 1.294 bytes
ba: 80 ss: 57.97
settings: jxl-all-cjxl-q27
bpp: 0.632
useable: true
Original Variant family: webp 
file size: 1.298 bytes
ba: 80 ss: 58.48
settings: webp-all-cwebp-q31
bpp: 0.634
useable: true
Original Variant family: heif 
file size: 1.309 bytes
ba: 80 ss: 57.48
settings: heif-all-heifenc-q29
bpp: 0.639
useable: true
Original Variant family: heif 
file size: 1.309 bytes
ba: 80 ss: 57.48
settings: heif-all-heifenc-q30
bpp: 0.639
useable: true
Original Variant family: webp 
file size: 1.388 bytes
ba: 80 ss: 59.65
settings: webp-all-cwebp-q35
bpp: 0.678
useable: true
Original Variant family: heif 
file size: 1.405 bytes
ba: 80 ss: 59.02
settings: heif-all-heifenc-q31
bpp: 0.686
useable: true
Original Variant family: jpeg 
file size: 1.421 bytes
ba: 80 ss: 44.27
settings: jpeg-all-cjpegli-q9
bpp: 0.694
useable: false
Original Variant family: jpeg 
file size: 1.452 bytes
ba: 80 ss: 45.26
settings: jpeg-all-cjpegli-q10
bpp: 0.709
useable: false
Original Variant family: jpeg 
file size: 1.483 bytes
ba: 80 ss: 45.39
settings: jpeg-all-mozjpeg-q22
bpp: 0.724
useable: false
Original Variant family: jpeg 
file size: 1.496 bytes
ba: 80 ss: 45.03
settings: jpeg-all-cjpegli-q11
bpp: 0.730
useable: false
Original Variant family: webp 
file size: 1.498 bytes
ba: 80 ss: 60.94
settings: webp-all-cwebp-q40
bpp: 0.731
useable: true
Original Variant family: jpeg 
file size: 1.510 bytes
ba: 80 ss: 48.22
settings: jpeg-all-mozjpeg-q23
bpp: 0.737
useable: false
Original Variant family: jpeg 
file size: 1.525 bytes
ba: 80 ss: 48.00
settings: jpeg-all-cjpegli-q12
bpp: 0.745
useable: false
Original Variant family: jpeg 
file size: 1.540 bytes
ba: 80 ss: 46.25
settings: jpeg-all-mozjpeg-q24
bpp: 0.752
useable: false
Original Variant family: jpeg 
file size: 1.557 bytes
ba: 80 ss: 47.75
settings: jpeg-all-cjpegli-q14
bpp: 0.760
useable: false
Original Variant family: jpeg 
file size: 1.566 bytes
ba: 80 ss: 46.54
settings: jpeg-all-cjpegli-q13
bpp: 0.765
useable: false
Original Variant family: jpeg 
file size: 1.567 bytes
ba: 80 ss: 46.72
settings: jpeg-all-mozjpeg-q25
bpp: 0.765
useable: false
Original Variant family: jpeg 
file size: 1.602 bytes
ba: 80 ss: 47.52
settings: jpeg-all-mozjpeg-q26
bpp: 0.782
useable: false
Original Variant family: jpeg 
file size: 1.611 bytes
ba: 80 ss: 48.16
settings: jpeg-all-cjpegli-q15
bpp: 0.787
useable: false
Original Variant family: jpeg 
file size: 1.640 bytes
ba: 80 ss: 48.92
settings: jpeg-all-mozjpeg-q27
bpp: 0.801
useable: false
Original Variant family: jpeg 
file size: 1.649 bytes
ba: 80 ss: 50.61
settings: jpeg-all-cjpegli-q16
bpp: 0.805
useable: true
Original Variant family: jpeg 
file size: 1.669 bytes
ba: 80 ss: 52.16
settings: jpeg-all-mozjpeg-q28
bpp: 0.815
useable: true
Original Variant family: jpeg 
file size: 1.682 bytes
ba: 80 ss: 52.36
settings: jpeg-all-cjpegli-q17
bpp: 0.821
useable: true
Original Variant family: jpeg 
file size: 1.696 bytes
ba: 80 ss: 53.19
settings: jpeg-all-mozjpeg-q29
bpp: 0.828
useable: true
Original Variant family: jpeg 
file size: 1.723 bytes
ba: 80 ss: 52.77
settings: jpeg-all-cjpegli-q18
bpp: 0.841
useable: true
Original Variant family: jpeg 
file size: 1.731 bytes
ba: 80 ss: 53.31
settings: jpeg-all-mozjpeg-q30
bpp: 0.845
useable: true
Original Variant family: jpeg 
file size: 1.757 bytes
ba: 80 ss: 52.78
settings: jpeg-all-mozjpeg-q31
bpp: 0.858
useable: true
Original Variant family: jpeg 
file size: 1.761 bytes
ba: 80 ss: 54.44
settings: jpeg-all-cjpegli-q19
bpp: 0.860
useable: true
Original Variant family: jpeg 
file size: 1.794 bytes
ba: 80 ss: 54.89
settings: jpeg-all-cjpegli-q20
bpp: 0.876
useable: true
Original Variant family: jpeg 
file size: 1.828 bytes
ba: 80 ss: 55.25
settings: jpeg-all-cjpegli-q21
bpp: 0.893
useable: true
Original Variant family: jpeg 
file size: 1.839 bytes
ba: 80 ss: 56.62
settings: jpeg-all-cjpegli-q22
bpp: 0.898
useable: true
Original Variant family: jpeg 
file size: 1.858 bytes
ba: 80 ss: 56.57
settings: jpeg-all-mozjpeg-q35
bpp: 0.907
useable: true
Original Variant family: jpeg 
file size: 1.873 bytes
ba: 80 ss: 57.91
settings: jpeg-all-cjpegli-q23
bpp: 0.915
useable: true
Original Variant family: jpeg 
file size: 1.911 bytes
ba: 80 ss: 58.50
settings: jpeg-all-cjpegli-q24
bpp: 0.933
useable: true
Original Variant family: jpeg 
file size: 1.943 bytes
ba: 80 ss: 59.62
settings: jpeg-all-cjpegli-q25
bpp: 0.949
useable: true
Original Variant family: jpeg 
file size: 1.975 bytes
ba: 80 ss: 59.83
settings: jpeg-all-cjpegli-q26
bpp: 0.964
useable: true
Original Variant family: jpeg 
file size: 1.981 bytes
ba: 80 ss: 57.17
settings: jpeg-all-mozjpeg-q40
bpp: 0.967
useable: true
Original Variant family: png 
file size: 1.994 bytes
ba: 80 ss: 49.82
settings: png-all-pngquant-q4
bpp: 0.974
useable: false
Original Variant family: jpeg 
file size: 2.014 bytes
ba: 80 ss: 60.77
settings: jpeg-all-cjpegli-q27
bpp: 0.983
useable: true
Original Variant family: png 
file size: 2.132 bytes
ba: 80 ss: 50.71
settings: png-all-pngquant-q5
bpp: 1.041
useable: true
Original Variant family: png 
file size: 2.245 bytes
ba: 80 ss: 57.29
settings: png-all-pngquant-q6
bpp: 1.096
useable: true
Original Variant family: png 
file size: 2.245 bytes
ba: 80 ss: 57.44
settings: png-all-pngquant-q7
bpp: 1.096
useable: true
Original Variant family: png 
file size: 2.274 bytes
ba: 80 ss: 58.75
settings: png-all-pngquant-q8
bpp: 1.110
useable: true
Original Variant family: jpeg 
file size: 3.470 bytes
ba: 80 ss: 76.43
settings: jpeg-all-guetzli-q84
bpp: 1.694
useable: true
Zoom: 3× (Z)

Plot of similarity metrics: butteraugli and ssimulacra2