Website Downloader - Download source code from any website
Domainer - Manage All Your Domains and Websites
Web ScrapBook - A browser extension that captures the web page faithfully with highly customizable configurations.
cliget - Download files using curl or wget.
Offline Pages Pro - Offline Pages Pro is probably the world’s most advanced offline browser.
Folx - Folx is a simple yet powerful download manager and torrent client for Mac OS X.