ImageAlpha
ImageAlpha is a GUI for pngnq and pngquant.
17 Alternatives To ImageAlpha
Black Bird Image Optimizer
Optimize pictures without quality lossless.
FastStone Photo Resizer
Convert and Rename images in batch mode Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000
FileOptimizer
FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX…
GraphicsMagick
GraphicsMagick is the swiss army knife of image processing.
ImageMagick
ImageMagick is a software suite to create, edit, and compose bitmap images.
ImageOptim
Faster web pages and apps.
JPEGmini
JPEGmini - The Photo Optimization Tool Trusted by Tens of Thousands Image Perfectionists
OptiPNG
OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without…
Optimage
Advanced image optimization tool
PNGGauntlet
‘-Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs
Picpipe Snail
Resize images by changing their filenames
PngOptimizer
PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting…
SqueezeFile
squeeze your files to different dimension.
Squoosh
Compress and compare images with different codecs, right in your browser
Wedia
Wedia is a cloud Marketing Resource Management (MRM) suite that enables organizations to create, customize, distribute and score content.
Ximagic Quantizer
Ximagic Quantizer Toolbox with 10 color reduction filters (uniform, popularity, octree, median, wu, dennis lee, binary split, neuquant and scolorq) and 11 dithering filters error diffusion:(floyd-steinberg, fan, jarvis, stucki, sierra3, sierra2, sie…
XnConvert
XnConvert is an easy image converter for graphic files, photos and images available on Windows…