Why extract MP3 from video?
MP3 is the universal audio format. Pulling out the audio track is useful any time the video is just a vehicle for the sound: a music performance you filmed, a podcast recorded on camera, dialogue from a film clip, or a screen recording you want to listen to instead of watch.
The resulting MP3 is a fraction of the size of the original video and plays on every device, media player, and platform without any further conversion.
MP3 quality and file size
- High preset — ~245 kbps VBR. Indistinguishable from the original for music and speech. A 3-minute song is roughly 6–7 MB.
- Balanced preset — ~165 kbps VBR. Transparent quality for speech, slightly reduced for complex music. A 3-minute song is roughly 4–5 MB.
- Small preset — ~100 kbps VBR. Noticeable compression on music, acceptable for speech and voice recordings.
Need better quality? Try FLAC or M4A.
If you're archiving music or plan to edit the audio, MP3 isn't the best choice — it re-encodes the audio and introduces some quality loss. The Extract Audio tool also offers lossless FLAC (same quality as the original, ~40% smaller than WAV), M4A/AAC (Apple-native, slightly better quality than MP3 at similar sizes), and OGG/Vorbis (an open-format alternative to MP3).
Extract audio from a specific segment
Use the Trim control in the converter to set a start and end time before extracting. The output MP3 will contain only that portion of the audio, so there's no need to cut it down again afterwards.
Supported input formats
Extract MP3 from any video your browser can decode, including:
- MP4 — the most common video format
- MOV — QuickTime files from iPhone, iPad, and Mac
- MKV — Matroska container
- AVI — older Windows video format
- WebM — open web video with Opus audio
- WMV, FLV, M4V, and more
How it works
Extraction runs locally in your browser, using a WebAssembly build of ffmpeg — code we ship, work your device performs. There's no upload step — your video is read straight from your device, the audio stream is pulled out and encoded to MP3, and the file is saved to your downloads folder. For a large video, the upload you're skipping is usually the slow part — and skipping it is exactly what keeps everything 100% private.