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!
MP3Gain - A free automatic mp3 volume normalizer.
Smallpdf - PDF document management and conversion suite
easyMP3Gain - Graphical User Interface (GUI) for MP3Gain, VorbisGain and AACGain (enables you to modify the...
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.
wxMP3gain - Needs to be compiled.