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 multiple image processing at the same time, everyone will be able to reach the best result.
Caesium Image Compressor vs ReaConverter opinions
Cant convert to TIF CCITT group 4
XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux.
Phatch is an user friendly, cross-platform Photo Batch Processor and Exif Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies.
Last code commit in 2010, latest release from 2014.
Converseen is a free cross-platform batch image processor for Windows and Linux that allows you to convert, resize, rotate and flip an infinite number of images with a mouse click.Warning
Installation without activation key works showing different dangerous 3rd party softwares (bloatware, spyware, etc.). Avast Antivirus detected at least 3 different kind of viruses (or potentially viruses/dangerous software).
With Filestar you can "do anything with any file". Get rid of repetitive tasks, save time and boost your productivity with over 30.000 file conversions available. Transform or convert hundreds of files, all at the same time with a few simple clicks.
Compress or convert images on the web with offline support. Images are not uploaded on server and processed on client with webassembly. Support for formats like JPEG, PNG, WebP, AVIF and JXL.
ImBatch is a batch image processor with a nice graphical user interface. It will allow you to edit multiple image files at the click of a button by using scripts. The script will be created by combining Tasks.
With BIMP you can apply a set of manipulations to an entire group of images! It provides an easy to use interface and a lot of batch functions:
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.