ImageOptim-CLI

Automates batch optimisation of images.

Speeding up images often comes with a cost in picture quality and finding the right balance can be difficult.

Here we compare the percentage file size savings across several image optimisation tools, followed by the percentage of quality lost.

See the installation guide, examples and grunt-imageoptim.

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Legend:Best optimisationSize increasedHighest quality loss
Here we display the file sizes and quality loss of a collection of images after they have been compressed by each respective tool.
ImageImageOptimImageAlpha & ImageOptimPNGQuant & ImageOptimImageOptim by ZongxinJPEGmini & ImageOptimKrakenCodeKitgrunt-contrib-imageminSmushitTinyPNG
gif_wolk.gif 119143 bytes9.72%9.72%9.72%9.72%9.72%N/AN/AN/AN/AN/A
gif_streepjes.gif 3618 bytes28.88%28.88%28.88%28.88%28.88%N/AN/AN/AN/AN/A
gif_skyline.gif 136200 bytes7.2%7.2%7.2%7.2%7.2%N/AN/AN/AN/AN/A
gif_rood.gif 108099 bytes9.38%9.38%9.38%9.38%9.38%N/AN/AN/AN/AN/A
gif_patroon.gif 20226 bytes5.17%5.17%5.17%5.17%5.17%N/AN/AN/AN/AN/A
gif_oog.gif 125547 bytes7.38%7.38%7.38%7.38%7.38%N/AN/AN/AN/AN/A
gif_logo.gif 10577 bytes16.26%16.26%16.26%16.26%16.26%N/AN/AN/AN/AN/A
gif_grote-ogen.gif 89330 bytes10.99%10.99%10.99%10.99%10.99%N/AN/AN/AN/AN/A
gif_bril.gif 75646 bytes11.24%11.24%11.24%11.24%11.24%N/AN/AN/AN/AN/A
gif-interlaced_wolk.gif 108607 bytes0.96%0.96%0.96%0.96%0.96%N/AN/AN/AN/AN/A
gif-interlaced_streepjes.gif 3618 bytes28.88%28.88%28.88%28.88%28.88%N/AN/AN/AN/AN/A
gif-interlaced_skyline.gif 127436 bytes0.82%0.82%0.82%0.82%0.82%N/AN/AN/AN/AN/A
gif-interlaced_rood.gif 99005 bytes1.06%1.06%1.06%1.06%1.06%N/AN/AN/AN/AN/A
gif-interlaced_patroon.gif 20904 bytes8.24%8.24%8.24%8.24%8.24%N/AN/AN/AN/AN/A
gif-interlaced_oog.gif 117327 bytes0.89%0.89%0.89%0.89%0.89%N/AN/AN/AN/AN/A
gif-interlaced_logo.gif 9903 bytes10.56%10.56%10.56%10.56%10.56%N/AN/AN/AN/AN/A
gif-interlaced_grote-ogen.gif 80562 bytes1.3%1.3%1.3%1.3%1.3%N/AN/AN/AN/AN/A
gif-interlaced_bril.gif 68188 bytes1.53%1.53%1.53%1.53%1.53%N/AN/AN/AN/AN/A