Extreme Image Converter

Extreme Image Converter is an approachable software application designed to rapidly convert images between various filetypes in batch mode. It offers support for BMP, ICO, JPEG, JPG, PNG, PPM, TIF, TIFF, XPM and XBM format.

There is no setup pack involved, which makes the tool portable. This means that you can copy the downloaded files to a custom directory on the disk or to a removable storage unit, in order to directly run Extreme Image Converter on any PC with minimum effort and no previous installations. It doesn't modify your system registry settings or create files on the HDD without asking for permission.

As far as the interface is concerned, the app has a simple window with many options neatly organized, where you can populate the image list with as many files as you want, even if they're from different directories.

When it comes to the conversion settings, you can select the output image extension, saving folder and quality, create the new files in the same location as the originals, allow the app to overwrite any existing files without confirmation, as well as automatically delete the source files on task completion. Once it's over, you can open the new images to check quality results.

File conversion jobs were carried out quickly in our testing, during which Extreme Image Converter remained light on system resources usage, since it required low CPU and RAM to function normally. We haven't come across any stability issues, as it didn't freeze, crash or prompt error messages.

Unfortunately, it hasn't received updates for a long time and remained in beta development stage. Nevertheless, it gets the job done, has intuitive options for all types of users, and can be used for free.