Some resources that provide free music downloads for cellphones include 4Shared Music, Music Maniac and MP3Skull. GetAndroidStuff.com lists 4Shared Music and Music Maniac among its top Android apps that offer free music downloads for mobile devices, as of June 2015.
The most common mobile audio format is MP3. Many resources such as MP3Skull have collections of MP3 files that users can search through and download. However, users should note that some files may be illegal to download.
GetAndroidStuff.com also ranks GTunes Music and Tunee Music Downloader among the best Android apps that provide free music downloads.
Music Maniac claims to archive millions of MP3 music files from a public search engine.