OptimumJPEG

OptimumJPEG is a lightweight and simple-to-use application which allows you to reduce the size of your pictures, in order to free up space on your hard drive.
This is a portable software, so installing OptimumJPEG is not required. In other words, you can store the tool on a removable drive and directly run its executable file on any computer.
The most important part is that your Windows registry keys will not be changed.
The interface of OptimumJPEG is plain and simple. You can only use the file browser or treeview to import images, since the "drag and drop" method is not supported. Batch processing is allowed.
So, all you have to do is adjust the compression ratio, specify the output destination and initiate the conversion process.
In addition, you can convert image files between the JPG and BMP format, as well as resize them by writing the desired height and width.
The program immediately completes a task while using a low-to-moderate amount of system resources. We haven't come across any errors. Indeed, the quality of the photographs is preserved at a very good level, but the resulted size is not very impressive.
For example, a 852KB picture has been reduced to only 644KB. Also, OptimumJPEG doesn't offer you the possibility of overwriting the original files. Nevertheless, we encourage users to take advantage of this simple software if they have massive amounts of pictures on their computer.