iRinger creates free ringtones for your iPhone from virtually any music or video file you own. Even YouTube videos! iRinger exports ringtones to iTunes, so there is no need to "jailbreak" your iPhone. You will be creating ringtones in seconds. It's that simple.
FREE (with advertising you can remove for $10)
Works with ALL versions of the iPhone including iPhone 4
Three Steps: Import, Preview then Export. Done.
Convert virtually any audio format into an iPhone ringtone
Extracts audio out of video automatically
Choose which section of the audio you want to hear
Adjust ringtone length, volume, fade in, fade out and loop gap
Export to iPhone ringtone format and import right into iTunes
Export using SCP/SFTP (SSH server required on remote device)
Use audio effects: Delay, Flanger, Boost, Reverse, etc.