Downloading IconJar 2.11.2 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Theming Tools, more precisely Icons & cursors. 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. This software for Mac OS X was originally created by Davey Heuser, Curtis Hard.
From the developer:
Find the needle in the haystack
IconJar leaves digging through your design resources folders behind so you can use icons without hassle. Your personal icon organizer is always just one click away and offers you everything you need to get the job done.
Use IconJar with any app
Drag icons from IconJar into any app. You can use QuickDrag to drag and drop icons in any size, color or various file formats on the fly.
You may want to check out more software for Mac, such as model2icon, Telling Folders or Iconator v1.2, which might be similar to IconJar.