ImageOptim
ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.
The JPEG Reducer is a frontend of the command line utility jpegtran, which is the lossless transformations expert inside the Independent JPEG Group's JPEG software...
the jpeg reducer is a frontend of the command line utility jpegtran, which is the lossless transformations expert inside the independent jpeg group's jpeg software package. the jpeg reducer provides a graphical user interface, batch processing, a preview of the optimization process, and longterm statistics which include top 20's of the files which were optimized best. at some point the development went beyond the basic functionality of jpegtran, as both the integration of external applications and the detection of various kinds of duplicates were added. jpeg reducer can reduce the size of many jpeg files without any loss in the quality of the native image, and features automatic duplicate detection.
Productivity Social Phots and Graphics
image-compression lossless-compression lossless jpeg
ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.
Free Open Source Mac OS X
With JPEG Resampler you are able to change the resolution and size of JPEG images of a directory in one go and move them into another folder. Source as well as the destination location can be determined by the user freely.
Free Windows
Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.
Freemium
Vallen JPegger is the international, handy, and full featured image viewer, which shouldn't be missing on any PC. Currently it supports 27 different languages...
Free Windows
Works with all common image formats like png, jpeg, bmp, tiff and Microsoft Office documents pptx, docx, xlsx.
Free Mac OS X Windows