ImageMagick
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
IMAGEmini, a powerful photo resizer and optimizer, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original...
imagemini, a powerful photo resizer and optimizer, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality and png, jpg, gif formats. with imagemini, you can save huge space and share fullresolution photos with your friends much faster.
imagemini also supports batch resizing hundreds of photos quickly and easily with one click. it supports 70 types of image formats for resizing:jpg,bmp,png,gif,pdf,psd,pnt,rgb,arw,bmpf,cur,crw,cr2,dcr,dng,epsf,epsi,epi,eps,exr,efx,erf,fpx,fpix,fax,fff,giff,g3,hdr,icns,ico,jp2,jfx,jfax,jpe,jfif,jpf,mpo,mac,mrw,mos,nrw,nef,orf,pict,pic,pct,ps,pntg,pngf,pef,qtif,qti,raw,raf,rw2,rwl,sr2,srf,srw,sgi,tric,tiff,tga,targa,tif,xbm,3fr,8bps
Batch processing Lossless Compression
Productivity Social Phots and Graphics
image-resize batch-processing image-compression image-optimizer lossless-compression png-optimization
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
Free Open Source Mac OS X Windows Linux iPhone iPad Xfce
Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then choosing the right parameters are the key factors of smaller files.
Free Windows GIMP XnView IrfanView
ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.
Free Open Source Mac OS X
-Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG -Ultra-configurable PNGGauntlet is a .
Free Windows
PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the PNG format using simple drag-and-drop.
Free Open Source Windows
optimus.io offers lossless compression of images available with a WordPress plugin and via API. Benefits: - The file size will be reduced but the image quality remains the same - Bulk optimization - Conversion also to WebP available
Freemium Web Wordpress
With Image Optimizer you can losslessly optimize your PNG, JPEG and GIF files and thus save your bandwidth and your users' time! Kraken recompresses images with...
Freemium Web Chrome Firefox
ImageSizer is an application built to resize, optimize and rename a batch of jpg images producing a zip file containing the images. ImageSizer also allows users to...
Free Mac OS X Windows Adobe AIR
A collection of recompression utilities for your ZIP archives, PNG snapshots, MNG video clips and GZ files.
Free Open Source Mac OS X Windows Linux
PictureBeaver is a WSH script for batch optimization PNG/JPEG/GIF images using optipng/jpegtran/gifsicle utilities.
Free Open Source Windows GitHub
A powerful photo resizer and optimizer for Mac, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution...
Freemium Mac OS X