Video DownloadHelper - Browser extension to download videos from the Web
KlickAud - Klickaud is a free web-based application to online download SoundCloud track, music, songs in MP3 formats.
FastestTube - Youtube fastesttube downloader will make your internet expirience faster harder beter stronger.How to merge video and audio .
SoundCloud to MP3 - SoundCloudToMP3.me is a great online service for downloading and converting soundcloud to MP3 files.
FlashGot - FlashGot is a browser extension for Mozilla Firefox that is designed to make it easy to download a whole batch of files in one go. The extension is open source and free to use, but it is no longer compatible with the most recent version of Firefox.
Anything2MP3 - Anything2MP3 is a free online SoundCloud and YouTube to MP3 transformation device which permits you to change over and download SoundCloud and YouTube recordings to MP3.