var YoutubeMp3Downloader = require("youtube-mp3-downloader"); // Configure the downloader var YD = new YoutubeMp3Downloader( "ffmpegPath": "/usr/local/bin/ffmpeg", // Path to your FFmpeg binary "outputPath": "./downloads", // Where to save the MP3s "youtubeVideoQuality": "highestaudio", // Desired quality "queueParallelism": 2, // Number of parallel downloads "progressTimeout": 2000 // Progress update interval (ms) ); // Start the download using a YouTube Video ID YD.download("Vhd6Kc4TZls"); // Event: Download and conversion finished YD.on("finished", function(err, data) console.log("Finished:", JSON.stringify(data)); ); // Event: Error during process YD.on("error", function(error) console.log("Error:", error); ); // Event: Progress updates YD.on("progress", function(progress) console.log(progress.percentage + "% complete"); ); Use code with caution. Copied to clipboard Key Features
: Extract authentication cookies from a logged-in browser session and pass them into the ytdl-core configuration options object. This authenticates the automated requests, significantly raising your traffic threshold. Resolving Codec Mismatch Errors
Note: Using 320kbps on a source that is originally 128kbps will not improve quality, only file size.
The target script lacks permission to write to the designated outputPath . youtube-mp3-downloader npm
: The application requests the raw media stream from YouTube's servers. YouTube generally stores video and audio tracks separately to optimize adaptive bitrate streaming (DASH). High-quality audio is usually streamed in format containers like WebM or M4A (AAC encoded).
Instead of manually spawning child processes or handling streams, this package provides a clean, event-driven API.
Allows for adjusting audio quality, bitrates, and file naming conventions. Resolving Codec Mismatch Errors Note: Using 320kbps on
The module is highly configurable, allowing you to control the following parameters during initialization: ffmpegPath: Exact location of your FFmpeg binary. outputPath: Where the converted MP3 files will be stored. youtubeVideoQuality: Defaults to highestaudio queueParallelism: Controls how many downloads happen at once (default is 1). progressTimeout:
downloader.download(videoId, $videoId.mp3 );
: Defines how many downloads can run at the same time. Advanced Usage: Handling Playlists and Metadata YouTube generally stores video and audio tracks separately
Use queueParallelism wisely to prevent overloading your server, especially if running on a shared hosting environment. Conclusion
const YoutubeMp3Downloader = require('youtube-mp3-downloader');
Once installed, you can require the package and configure it to fit your local environment. Below is a foundational example showing how to initialize the downloader and process a single YouTube video ID. javascript
This is crucial. The package depends on FFmpeg to perform the audio conversion. macOS: brew install ffmpeg Windows: Install FFmpeg and add it to your system PATH. Linux: sudo apt install ffmpeg Getting Started: Installation and Setup Initialize your project: mkdir yt-downloader cd yt-downloader npm init -y Use code with caution. Install the package: npm install youtube-mp3-downloader Use code with caution. Basic Implementation Example
YD.on("error", (error) => console.error("❌ Error:", error); );