Convert → MP4 to MP3
Convert MP4 to MP3
Strip the audio out of a video and save it as MP3. Useful for podcast cuts, interview transcripts, music ripped from a music-video file, or feeding audio-only into a transcription service.
Fast path: open Video Forge → pick Tools → Extract audio → drop the file in.
Video Forge picks the right codec, container, and bitrate for the destination, runs a single ffmpeg job, and writes the output next to the source.
Download Video Forge — 10 conversions free on macOS and Windows.
When you'd want this conversion
- Extracting interview audio for editing or transcription
- Pulling a song or score off a music video file
- Preparing audio-only versions for podcast feeds
- Feeding audio into speech-to-text models
Key consideration
The audio track inside an MP4 is almost always AAC. Re-encoding AAC to MP3 is mildly lossy; use M4A output instead if you want lossless (passthrough) audio.
ffmpeg command (if you prefer the CLI)
ffmpeg -i input.mp4 -vn -c:a libmp3lame -b:a 192k output.mp3Same encoder Video Forge uses internally. Drop the GUI and the command runs identically; bring the GUI back when you want preview-before-commit or destination tiles.
Why use Video Forge for this
- No upload. The file stays on your machine. Faster than any cloud converter for anything larger than a few hundred MB.
- ffmpeg is bundled. No
brew install, no PATH issues, no manual install. - 5-second preview before the full encode runs. Catch CRF and color issues before committing time.
- $5 lifetime, 10 free conversions first. Pay once, use forever, 5 devices per license.