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.

JPEG Reducer is described as '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' and is a Image Optimizer in the photos & graphics category. There are more than 10 alternatives to JPEG Reducer for a variety of platforms, including Mac, Windows, Linux, Web-based and BSD apps. The best JPEG Reducer alternative is ImageOptim. It's not free, so if you're looking for a free alternative, you could try ImageOptim or pngquant. Other great apps like JPEG Reducer are Curtail, JPEGmini, Minuimus and ECT - Efficient Compression Tool.
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.



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.




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




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 including full Unicode language and file support. It is designed for large image libraries with thousands of files.


Pichi for Mac is the best and quickest tool for optimizing and resizing your images individually or in batches.

Effortlessly compress your images without loss of quality. Aerate offers an industry leading default mode, as well as new fast and extreme presets. Switch between modes quickly using the new compression slider.




A Mac app and Chrome extension that optimizes/compresses images and PDFs. Tinybeest also converts file formats and resizes images for the web.



Tinybeest is the most popular Web-based alternative to JPEG Reducer.