ImageOptim Good alternative? YES NO

ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.

Free Open Source Mac

RIOT - Radical Image Optimization Tool YES NO

Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then...

Free Windows GIMP XnView IrfanView

• Warning Installer contains Open Candy adware and potentially more: https://www.virustotal.com/en/file/5c69ba60d82abbf73c6ac27a0cf39b054cb5a7cbc6fc8a6cb00d4daa6e069b73/analysis/

Caesium Good alternative? YES NO

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 Windows Linux Web Android

PortableApps.com AppCompactor Alternative?  YES NO

AppCompactor allows you to easily compress applications to decrease size on disk and increase performance when running from slow media, like flash drives. It's...

Free Open Source Windows PortableApps.com

pngquant Good alternative? YES NO

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 Windows Linux

ArcThemAll! Good alternative? YES NO

A simple software to multiple compress files and folders. ArcThemAll provides compression and extraction of batches of multiple folders or files with simple...

Free Open Source Windows

Free UPX Good alternative? YES NO

Graphical interface for the UPX packer which offers easy access to all documented and undocumented UPX parameters without the need for command line usage.

Free Windows PortableApps.com

JPEG Archive Good alternative? YES NO

Utilities for archiving photos for saving to long term storage or serving over the web. The goals are: use a common, well supported format (JPEG), minimize storage space...

Free Open Source Mac Windows Linux BSD

Leanify Good alternative? YES NO

Leanify is a lightweight lossless file minifier/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompress the file to reduce...

Free Open Source Mac Windows Linux

Crunch Good alternative? YES NO

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...

Free Open Source Mac

AdvanceCOMP Good alternative? YES NO

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

Free Open Source Mac Windows Linux

ASPack Good alternative? YES NO

ASPack is an advanced Win32 executable file compressor, capable of reducing the file size of 32-bit Windows programs by as much as 70%.

Commercial Windows

Black Bird Image Optimizer Alternative?  YES NO

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

Tinybeest Good alternative? YES NO

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 Web

UPX Graphical Good alternative? YES NO

Graphical GUI incl UPX 3.07 and a scrambler. Support Drag & Drop and context-menu. With many further information. UPX. NO external program required. UPX is a very...

Free Windows