Extract high-quality audio from your MP4 video files and save it as MP3. Ideal for pulling music, dialogue, or podcast audio from recordings — the MP3 output works on every device and media player without compatibility issues.
Drop video file here
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Supports MP4, MOV, AVI, WebM and more
video.mp4
0 MB
Audio Quality
Extracting Audio...
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Audio Extracted!
Your MP3 file is ready for download
MP4 to MP3 (Extract Audio)
Need the audio from a video—music, a lecture, an interview, or a meeting recording? MP4 to MP3 extracts the audio track so you get a smaller file that is easier to share, edit, or upload.
How to use
- Upload your MP4 file.
- Choose output quality (bitrate).
- Convert and download MP3.
Recommended bitrates
- Speech: 96–128 kbps
- Music: 192–320 kbps
- If the source is low quality: higher bitrate will not improve it—use 128–192 kbps.
Troubleshooting
- No audio found: the video may have a silent track or unsupported codec. Try another video file or export as AAC (if available).
- Audio out of sync: re-export the source MP4 or try a different conversion setting.
Privacy & Security
To process your file, FastlyConvert temporarily uploads it to our servers, converts it, and then automatically deletes it within 24 hours. Transfers use HTTPS encryption. We do not sell your files or use them to build public datasets. If you need immediate deletion assistance, contact us at support@fastlyconvert.com. Your MP4 is used only to extract the audio track and is deleted automatically after processing.
Copyright & acceptable use: Please upload only files you own or have permission to use. Do not upload illegal, infringing, or sensitive personal content.
Why Extract Audio from Video?
Listen Anywhere
Play audio on any device without video playback
Create Podcasts
Extract audio from video recordings for podcasts
Save Music
Extract music from video clips
Save Space
Audio files are much smaller than video files
Offline Listening
Download audio for offline playback
Audio Editing
Edit extracted audio in any audio editor
Frequently Asked Questions
Does extracting audio from MP4 reduce quality? expand_more
No, extracting audio preserves the original audio quality from your video file. The bitrate you choose for the MP3 output determines the final file size and quality—higher bitrates (192-320 kbps) maintain better audio fidelity.
Can I extract audio from YouTube videos? expand_more
You can extract audio from MP4 files you own or have permission to use. For YouTube videos, you must first download them locally using a YouTube downloader tool, then upload the file to FastlyConvert. Always respect copyright and only extract audio from content you have rights to use.
What bitrate should I choose when converting MP4 to MP3? expand_more
For speech and podcasts, 128 kbps is sufficient. For music, use 192 kbps for good quality or 320 kbps for maximum quality. Higher bitrates create larger files but preserve more audio detail. Choose based on your intended use and storage constraints.
Can I convert a specific portion of the video to MP3? expand_more
FastlyConvert extracts the entire audio track from your video. To extract only a portion, you can trim your video file first using a video editor, then upload the trimmed version to extract just the audio you need.
What's the difference between MP4 to MP3 and MP4 to WAV? expand_more
MP3 is a compressed audio format that reduces file size while maintaining reasonable quality, making it ideal for sharing and playback. WAV is an uncompressed format that preserves all audio data, resulting in much larger files but perfect for professional audio editing and archival purposes.