Retriever è download manager scritto in Java, con caratteristiche interessanti:

• Resumable FTP and HTTP downloads.
• Support for BitTorrent transfers.
• Support for Metalinks with full and partial hash verification, multi file support and display of metalink file information.
• FTP and HTTP server authentication.
• Support for HTTP referer, cookies and POST data.
• supports HTTP, FTP and SOCKS proxies with authentication.
• Ability to add file download mirrors.
• Ability to segment downloads so only a portion of the file will be downloaded. In the case of multi file torrents individual files can be selected for download.
• Scheduled downloading.
• Pausable downloading.
• Execute external application on download start and/or completion.
• Segmented downloading from multiple servers.
• User customizable icons. See Retriever's help documentation for details.
• Simultaneous download of a single file from multiple sources.
• Prioritized downloads which will take precedence over all others.
• Download mirror searching (powered by Yahoo! search).

Supporta IE, Opera, e Firefox (tramite FlashGot).