XnConvert is a powerful and free cross-platform batch image processor, allowing you to combine over 80 actions. Developed by XnView
License: Free
XnConvert is a feature-rich image converter with advanced capabilities like watermarking and metadata editing, making it ideal for users needing extensive image manipulation. In contrast, Image Tuner is a simpler, more lightweight tool focused on basic image editing and fast performance, suitable for users who need quick edits without the complexity of advanced features.