JPEG Resampler!

ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization). ImageOptim removes EXIF meta­data, such as GPS position and camera's serial number, so that you can publish images without exposing private information (but there's an option to keep the meta­data if you need it).

-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

OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.

pngquant is a command-line utility and a library for lossy compression of PNG images.

AdvanceCOMP is a collection of recompression utilities for your .ZIP archives, .PNG snapshots, .MNG video clips and .GZ files.

You can use PNGOUTWin, an easy-to-use PNG optimizer, to create smaller image files and speed up your website, reach more potential customers, and decrease your bandwidth costs. You can convert and compress to PNG from TIFF, GIF, BMP, and other formats, or optimize your existing PNG files.

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. This little power pack reads 40 different image file formats, supports lossless JPEG rotation and includes unique MP3 Organizer, including a simple player: MP3 files are categorized according their MP3 tag information into artist, genre and album in a comfortable tree structure. Great for large music archives. »

Optimize pictures without quality lossless.

SmallImage is a simple and efficient tool to batch process JPEG files, resize them, recompress them, remove embedded profiles and make them ready for the web or store them efficiently.

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

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 long-term 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. »

Drag your PNGs onto PNGCrushrrr and get super-optimized files ready to be emailed or posted on the web! Supports one or more files being dropped and instead of overwriting your original files, PNGCrushrrr outputs .crushed.png files for comparison.

Works with all common image formats like png, jpeg, bmp, tiff and Microsoft Office documents pptx, docx, xlsx.