Download of URLDownloader 1.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. URLDownloader for Mac lies within Internet & Network Tools, more precisely Download Managers. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free Mac application is Modular Dreams Incorporated.
From the developer:
This app downloads all images in a series for the image you ask it to download. For example, if you search for "Bjork" in Google or Bing Images and discover Bjork-12.jpg on a site, there is likely a Bjork-1.jpg, Bjork-2.jpg, and so on. This app automatically downloads them all for you. And it is designed to work around naming challenges that might exit.
You may want to check out more software for Mac, such as Okawix, Fiesta Download Manager or PatchBurn, which might be related to URLDownloader.