NCM is NetEase Cloud Music's encrypted format. This tool decrypts it locally first, then encodes to MP3 — playable everywhere. Decryption happens entirely in your browser.
About NCM
NetEase Cloud Music encrypted format
NCM is the encrypted cache format used by NetEase Cloud Music and cannot be played directly. This tool decrypts it in your browser and restores it to MP3 or FLAC.
- Auto-decrypts to common formats
- Encrypted, must be decrypted first
About MP3
The most popular lossy format
MP3 is a lossy audio format that greatly reduces file size while keeping near-CD perceived quality. It is supported by virtually every device and player, making it the top choice for sharing.
- Small file size, easy to share
- Universally supported by devices
- Lossy compression cannot restore lost audio
NCM to MP3 FAQ
Will converting NCM to MP3 lose quality?
Both NCM and MP3 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 NCM to MP3?
Just drop multiple NCM files in; they are converted to MP3 one by one via a queue. You can download them individually or as a single ZIP.