CSSImageEncoder 1.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. CSSImageEncoder for Mac lies within Developer Tools, more precisely Webmaster Tools. This Mac application is a product of WriteIt! Studios Ltd. 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.
From the developer:
CSS Image Encoder converts your website's images into base64 code and then inserts them all into a CSS stylesheet. So instead of linking to an image and waiting for it to be loaded, you simply load the base64 code and get an instant result.
CSS Image Encoder allows you to easily process all your website's images at once using its all new batch processor.
You may want to check out more software for Mac, such as QuickMenu, Adobe Shockwave or Image2Web, which might be related to CSSImageEncoder.