How to do it, step by step
- Select the video.
- Choose the bitrate (192k is the default), the channels and the volume.
- If you want just a part, turn on “Trim clip”.
- Click Extract audio, listen in the player and download the MP3.
When this is useful
Turn a video into an audio file
MP3 plays on phones, computers, cars and most devices.
Reduce the size of a recording
When only the sound matters, MP3 takes a fraction of the video.
Prepare the sound for transcription
With the audio separated, sending to WebFaz Transcription is lighter.
Tips for a good result
- Each minute at 192 kbps takes about 1.4 MB; at 320 kbps, about 2.4 MB.
- To edit the sound in another program without new quality loss, use the video to WAV page (the file is much bigger).
What this tool does not do
- MP3 is a lossy format: the quality never exceeds that of the audio that was in the video.
- One video at a time, and the extraction depends on the device’s memory: very large videos may fail.
- The video must have an audio track; if it does not, the app warns you.
- The new file carries the “WebFaz.com” credit in the metadata (comment and artist).
Frequently asked questions
- Which videos work?
- MP4, M4V, MOV, WebM, MKV and TS.
- Does the file name change?
- Yes. The MP3 gets the video’s name followed by _webfaz, for example talk_webfaz.mp3.
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Text written by Marcelo Amantino · updated October 18, 2026 · who we are