NCM decrypts locally to its original audio, then converts to uncompressed WAV. You get full lossless output (if the source was lossless) — at the cost of a large file.
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 WAV
Uncompressed lossless format
WAV typically stores audio as uncompressed PCM, preserving the exact original signal. It is ideal for editing and professional use, but produces large files.
- Lossless and uncompressed
- Simple structure, easy to edit
- Large file size, not ideal for streaming
NCM to WAV FAQ
Will converting NCM to WAV lose quality?
NCM is already a lossy format, so converting to lossless WAV introduces no additional quality loss — existing compression artifacts remain but nothing new is degraded.
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 WAV?
Just drop multiple NCM files in; they are converted to WAV one by one via a queue. You can download them individually or as a single ZIP.