Converter365.com is a universal online tool for the conversion of a multitude of different formats that is also completely free of charge. To find the format you need, you can search nine categories Image, Vector, Video, Audio, Documents, Archive, Spreadsheet, Presentation, and E-Book.
File Converter - Convert & compress everything in 2 clicks!
Yout - YouTube to Mp3 Converter
CR2toGPGconverter - If you need to open, edit or print the images from your Canon DSLR that are in CR2 format, you’ll have to convert them in JPG or some more accessible image format.
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
AIFFconverter - Convert AIFF to MP3 format online for free. AIFFconverter.com is the best online tool around is that it’s completely free for unlimited daily conversions per user.
You-Get - Command-line utility to download media contents from the web