SABnzbd - SABnzbd is a free/open-source cross-platform binary newsreader written in Python.

Headphones - Automatic music downloader for SABnzbd. Headphones is an automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent, Deluge and Blackhole.

NZBGet - The most efficient usenet downloader.

Lidarr - Lidarr is a music collection manager for downloading and organizing music libraries.

GrabIt - GrabIt is a free application that enables you to easily find and download content from Usenet news...

MP3base - MP3box - free mp3 search and download, stream music online for free, play tons of artists, albums and songs without registration.