Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
PhotoPenguin App - PhotoPenguin is a completely free batch photo editor with support for cropping, resizing, adding watermarks, and converting photos to other formats. It works on the user's device, using the capabilities of modern browsers.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Better Uptime - We call you when your website goes down
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats