How to convert NCM files to MP3 or FLAC

This guide explains the exact flow on the web app, what to expect from the output files, and the few edge cases that can make a conversion fail.

Open the converter Read the FAQ

Quick steps

Open the main converter page in Chrome, Safari, Firefox, Edge, or another modern browser.
Drag one or more `.ncm` files into the upload area, or click to select them.
Wait while the browser reads the file container and prepares the track list.
Preview a converted track if you want to check it first.
Download individual results or save everything as one ZIP archive.

If the source file contains FLAC, the exported file stays lossless. If it contains MP3, the original stream is kept without a new lossy encode.

Title, artist, and album fields are written into the final file whenever that information is available from the container data.

The app can attach cover art so the converted file looks correct in music players and mobile libraries.

That usually means the selected file is not an NCM container or is incomplete. Try a different file from the same source to compare.

Some files do not include complete metadata. In that case the converter can still restore the audio stream, but the final tags may be partial.

All work happens in your browser, so conversion speed depends on the device and how many files are processed at once.