nemassler-lib v0.1.1

nemassler-lib

A Node.js library of nemassler, built in Rust.

Usage

Install dependency

npm i nemassler-lib

Use in Node.js

Transform Netease Music .ncm files into .mp3 format.

Transform single file

import { processFile } from "nemassler-lib"

/**
 * function processFile(ncmDirectory, mp3Directory, fileName): string
 * 
 * mp3 output folder will be generated automatically.
 */
const result: string = processFile("/xxx/ncm","/xxx/mp3", "test.ncm")

// output: 'Output file: /xxx/mp3/test.mp3'

Transform multiple files

import { ncm2mp3 } from "nemassler-lib"

/**
 * function ncm2mp3(ncmDirectory, mp3Directory): string[]
 * 
 * You need to create ncm folder yourself.
 * mp3 output folder will be generated automatically.
 */
const result: string[] = ncm2mp3("/xxx/ncm","/xxx/mp3")

// output: ['Output file: /xxx/mp3/<name>.mp3']

Dev

pnpm i
cd native && cargo check
cd .. && pnpm run debug

License

MIT License @Vincent-the-gamer 2025-PRESENT