Contact sheetz is a Mac app that allows you to quickly and easily generate thumbnails (often called contact sheets) for your media. It supports virtually any video file format and quality, and is versatile for all your thumbnailing needs.
Drag and drop your media files for fast thumbnail creation
Fully customizable look and feel of your contact sheet
Batch processing of media files through an asynchronous queue
Preview your changes before saving the final contact sheet
Supports most video formats through FFmpeg backed code
Save final contact sheet as png, tiff, jpg or bmp