MP4 to MP3

Quickly extract MP3 audio from MP4 videos online. Supports local batch processing in your browser, no file uploads required, ensuring data security and conversion efficiency.

Drag & drop MP4 videos here, or click to upload

Supports common video formats like MP4, MOV, etc.

This tool runs entirely in your browser locally. Your video files are not uploaded to any server.

How to Use

  1. Add Videos: Click the upload area or directly drag multiple MP4 files into the conversion box.
  2. Adjust Audio Quality: Click the settings icon to choose an output bitrate of 128kbps, 192kbps, or 320kbps according to your needs.
  3. Start Conversion: Click the “Start Conversion” button, and the system will automatically process the video queue locally.
  4. Save Audio: After conversion, you can click the download icon next to individual files, or click “Download ZIP” to package and save all MP3s in one go.

Features

  • Local Private Transcoding: Video processing is done entirely in your browser; files do not pass through servers, ensuring personal privacy and security.
  • Custom Bitrate: Supports various audio quality settings, allowing extraction of up to 320kbps high-fidelity MP3 audio.
  • Batch Extraction Mode: NekoLabTools features an efficient task queue, supporting the addition and conversion of dozens of video files simultaneously.
  • Large File Compatibility: Supports processing large MP4 videos (recommended under 2GB), with a smooth and lag-free conversion process.

FAQ

  • Q: Does the conversion process consume data? A: Thanks to local transcoding technology, your original files are not uploaded during video processing (except for page loading), making it very data-efficient.
  • Q: Does it support converting from other video formats to MP3? A: This tool is deeply optimized for the MP4 format, ensuring that the extracted MP3 audio tracks are complete and highly compatible.
  • Q: Where can I find the converted files? A: Files will be saved directly to your browser’s default download folder. The file name will retain the original video name with the extension modified.