How to Extract Audio from Any Video File

Sometimes a video is really just a vehicle for its audio. A recorded interview, a webinar, a lecture, a music performance, a podcast episode that was filmed as a video — in all of these cases, you want the audio track stripped out and saved as a standalone file you can listen to, edit, or archive.

Extracting audio from video is a codec operation, not a conversion. For WAV output, the audio data is copied directly from the video container with no re-encoding. For MP3, FFmpeg transcodes the audio track to MPEG audio. Either way, the video data is discarded entirely.

MP3 vs WAV: which output format to choose

Choose WAV if you plan to edit the extracted audio in a DAW, need the full original quality, or want to archive it. WAV is lossless and uncompressed — the audio data is exactly what was in the video file, nothing degraded.

Choose MP3 if you're creating a podcast episode, sharing the audio for listening, or just want the smallest file size. At 192 kbps, MP3 is transparent for voice and music on any consumer playback device.

How to extract audio in your browser

1. 1Go to tools.zenwebx.com/extract-audio.
2. 2Drop your video file (MP4, MOV, AVI, MKV, or WebM up to 500 MB).
3. 3Choose MP3 or WAV as the output format.
4. 4Click Extract Audio and download the file.

Processing runs in your browser via FFmpeg.wasm. Nothing is uploaded. For WAV output, the process is very fast because the audio stream is copied directly. MP3 takes slightly longer because of the encoding step.

Common audio extraction use cases

• Creating a podcast version of a recorded video interview.
• Extracting music from a performance video to edit in Audacity or GarageBand.
• Getting the audio track from a webinar or training video for offline listening.
• Archiving a voice memo that was recorded as a video file.
• Extracting a song or clip from a video for personal use.