Thumbnail Grabber

Thumbnail Grabber is a comprehensive tool designed to capture webpages and save their thumbnails as common image files with the JPEG and PNG extensions. It features a wide range of advanced options and comes in handy for monitoring specific websites for new and modified content.

Simple setup and GUI

Installing this app takes minimal time and effort. As for the interface, it adopts a large window with a simple structure, where all available options are visible.
Thumbnail Grabber can be instructed to grab images from a plain text document containing a customizable list of domains, or from a single URL. This webpage can be loaded into the main window to preview its contents.

Configure thumbnail properties and add watermarks

Before taking screenshots, it's necessary to configure output settings regarding the saving directory, preferred image format (JPEG or PNG) and file naming pattern (domain, document, path and document, or domain, path and document).
Moreover, you can embed an image watermark (BMP, JPG, JPEG or PNG format) and customize preferences when it comes to the transparency, alignment, indent and color.
It's also possible to set the thumbnail size (percent of the original size, or maximum width and height), include query parameters, remove scrollbars, and close the application on task completion. During the job, you can check out the number of total processed domains, successful and failed thumbnails, together with elapsed time.

Evaluation and conclusion

It didn't put a strain on the overall performance of the machine in our tests, thanks to the fact that it required a low amount of CPU and RAM to work properly. On the other hand, it failed in its attempt to grab thumbnails in several cases, placing the images in the "failed" folder. Nevertheless, you can test Thumbnail Grabber for yourself, since it's free for non-commercial use.