Enkoder 4.0.2 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. We recommend checking the downloaded files with any free antivirus. This free software for Mac OS X was originally designed by com.hivelogic. The software is included in Developer Tools.
From the developer:
Enkoder... Posting your email address on a website is a sure-fire way to get an inbox full of Spam. The Enkoder helps protect email addresses by converting them into encrypted JavaScript code, hiding them from email-harvesting robots while revealing them to real people.
Although the Enkoder should help to reduce Spam, no solution is perfect. The only way to truly prevent Spam is to never publish your address at all, ever, anywhere.
You may want to check out more Mac applications, such as RAGE Domainer, ModelBaker or PageRank Viewer, which might be similar to Enkoder.