ImageOptim ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality. Free Open Source Mac OS X Remove EXIF Data Lossless Compression PNG Compression Add a feature 62 Like
Caesium Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and... Free Open Source Mac OS X Windows Linux Web Android Batch rename files Batch processing Drag n drop Multiple languages ... Portable Add a feature 25 Like
PNGGauntlet -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 ... Free Windows Lossless Compression File compression Works Offline PNG Compression Add a feature 27 Like
TinyPNG TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colours in the image, fewer bytes are... Free Web PNG Compression Add a feature 13 Like
OptiPNG 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... Free Open Source Mac OS X Windows Linux File compression PNG Compression Add a feature 19 Like
pngquant pngquant is a command-line utility and a library for lossy compression of PNG images. The conversion reduces file sizes significantly (often as much as 70%) and... Free Open Source Mac OS X Windows Linux No features added Add a feature 5 Like
pngcrush Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline. Free Open Source Windows Linux File compression PNG Compression Add a feature 7 Like
Ralpha Image Resizer Ralpha Image Resizer is a lightweight and portable program that can perform image operations in batch mode, such as resizing and applying filters. Free Windows Batch conversion Batch processing Drag n drop Watermark images Add a feature 3 Like
TruePNG TruePNG is one of the most advanced PNG optimizers available. It does the most exhaustive checks for reductions, that lets it to optimize further, even if it uses a less... Free Windows File compression PNG Compression Add a feature 7 Like
AdvanceCOMP 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 File compression Add a feature 1 Like
PNGOUTWin 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... Commercial Windows No features added Add a feature 4 Like
Black Bird Image Optimizer Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!. Freemium $ $ $ Windows Portable Add a feature 1 Like
IMAGEmini 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... Commercial Mac OS X Batch processing Lossless Compression Add a feature 2 Like
Tinybeest A Mac app and Chrome extension that optimizes/compresses images and PDFs. Tinybeest also converts file formats and resizes images for the web. Freemium Mac OS X Web Built-in Image converter Add a feature 1 Like
Squeezer Squeezer is a PNG optimizer for Mac OSX that recompresses image files to a smaller size, without losing any information. Super easy to use: Drag-and-drop PNG on... Free Mac OS X Drag n drop Add a feature 1 Like
