BURN.link - Send secure, encrypted, self-destructing messages
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
sup3rS3cretMes5age - A safe, simple tool for one-time (self-destructing) messages
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
1ty.me - If you need to send a password or some other form of simple but sensitive information to someone...
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats