How to convert mp3 files online, and to change or choose the bitrate, sound quality (guide)

How to change your mp3 files bitrate or to convert songs online:

Sources:
Sursa intai!
Sursa a doua!

Choose one from the links above, Sursa intai, allows you multiple upload, bitrate changes and converts. Sursa a doua, allows you converts and bitrate changes one file at a time.

Instructions:
- choose the website.
- choose to upload your mp3 file.
- choose the options for your convertion.
- download the resulted file.