Convert MP4 to MP3

Quickly turn MP4 videos into lightweight MP3 audio files. Extract soundtracks, music, or voice recordings from any video format with our free online audio extractor.

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* Files are automatically deleted after 24 hours for your privacy

Convert files up to 100 MB for free

How to convert MP4 to MP3 online

  • 1 Drag and drop your MP4 video file, or click the upload area to select a file from your device.
  • 2 Our audio extraction tool automatically detects and extracts the audio track from your MP4, then converts it to MP3 format with optimal quality settings.
  • 3 Click the Download button to save your MP3 audio file to your device. Files are processed securely and deleted after 24 hours.

MP4 to MP3 FAQ

  • Why convert MP4 to MP3?

    Converting MP4 to MP3 is perfect when you need audio-only content from video files. Extract soundtracks from music videos, save audio from lectures and webinars, convert podcast episodes, or create audio versions of audiobooks. MP3 format lets you listen offline, save device storage space, and manage tracks in any music player or streaming app. This conversion is ideal for creating playlists, offline listening, and organizing audio content separately from video.

  • Will MP4 to MP3 conversion affect audio quality?

    Audio quality depends on the source video file and its original audio bitrate. Our converter extracts the original audio stream from your MP4 and encodes it to MP3 format efficiently, preserving as much quality as possible. Higher bitrates (like 320 kbps) deliver better sound quality but create larger files. Lower bitrates (128-192 kbps) produce smaller files suitable for casual listening. The tool automatically selects optimal settings, but you can adjust bitrate based on your needs—high quality for music or lower quality to save storage space.

  • How long does MP4 to MP3 conversion take?

    Conversion speed depends on your video file length and size. Most files convert in seconds to a couple of minutes. Short videos (around 10 minutes) typically finish in under a minute. Longer videos (30-60 minutes) may take 2-5 minutes. The process is fully automated—just upload your file and wait for processing to complete. You can download your MP3 file immediately once conversion finishes. Our servers handle the processing, so you don't need to keep the page open.

  • Can I convert multiple MP4 files to MP3 at once?

    Yes, our MP4 to MP3 converter supports batch conversion. Upload multiple video files at once and convert them all to MP3 format in a single operation. This feature is perfect for converting entire playlists, lecture series, online courses, or podcast collections. Simply select all your MP4 files and upload them together. The tool processes each file automatically and provides individual download links for each converted MP3. Batch conversion saves time and makes it easy to organize large collections of audio files.

  • Is there a file size limit for MP4 to MP3?

    The free version supports MP4 files up to 100 MB in size. This file size limit covers most regular videos—typically 5-10 minutes of content depending on video quality and resolution. For example, a 720p video at 30 fps usually fits within this limit for clips up to 10 minutes. Higher resolution videos (1080p or 4K) may reach the limit faster. If you need to convert larger files, consider upgrading to a premium plan for increased file size limits and additional features.