VPR is decrypted locally and converted to an M4R ringtone (~40s) for iPhone. Both decryption and conversion happen privately in-browser.
About VPR
KuGou Music encrypted format
VPR is an encrypted format used by KuGou Music and cannot be played directly. This tool decrypts it in your browser and restores it to a common audio format.
- Auto-decrypts to common formats
- Encrypted, must be decrypted first
About M4R
iPhone ringtone format
M4R is the ringtone format used by iPhone, essentially AAC audio limited to around 40 seconds, suited for creating custom ringtones.
- Usable directly as an iPhone ringtone
- Length-limited and single-purpose
VPR to M4R FAQ
Will converting VPR to M4R lose quality?
Both VPR and M4R are lossy formats. Re-compression may further reduce quality — choose a higher bitrate to minimize additional loss.
Will the file size change after conversion?
Converting to a lossless format (WAV) usually increases size, while converting to a lossy format (MP3, AAC) usually decreases it, depending on the chosen bitrate and sample rate.
How do I batch convert VPR to M4R?
Just drop multiple VPR files in; they are converted to M4R one by one via a queue. You can download them individually or as a single ZIP.