jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality. High-traffic websites with many JPEG images can benefit from decreased bandwidth costs. Less hard disk space will be used by image collectors.


pngquant is described as 'Command-line utility and a library for lossy compression of PNG images' and is a Image Optimizer in the photos & graphics category. There are more than 50 alternatives to pngquant for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best pngquant alternative is ImageMagick, which is both free and Open Source. Other great apps like pngquant are File Converter, Caesium Image Compressor, Dinky and XnConvert.
jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality. High-traffic websites with many JPEG images can benefit from decreased bandwidth costs. Less hard disk space will be used by image collectors.


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.

Crunch - Insane(ly slow but wicked good) PNG image optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using embedded versions of the pngquant and zopflipng PNG optimization tools.



Free EXIF Eraser is a free lightweight software that allows you to easily and effectively delete entire EXIF/IPTC/XMP information from image files.


Squeezer is a PNG optimizer for Mac OSX that recompresses image files to a smaller size, without losing any information.

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...

Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.




Squash is a simple, powerful app for compressing and converting images for the web and more. Simply drop an image into Squash and it reduces the filesize while maintaining its quality.




ETK Image Compressor Pro is a fast, lightweight Windows desktop application that drastically reduces image file sizes without visible quality loss.




Mass Image Compressor is easy to use - a point and shoot batch image compressor and converter tool for Web site optimization, photographers, HTML game creator and casual Windows users.

Pi7 Image Tool is a collection of some online tools like Image Compressor, Image resize tool, and Image conversion tools (Image to JPG, Image to PNG, etc).

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.



