How to use Video to MP3
- Choose a video (MP4, MOV, WebM) or an audio file (WAV, OGG, M4A, FLAC, MP3).
- Pick MP3, M4A or WAV, and a quality for MP3 and M4A.
- Select Save. The first time, the video engine (FFmpeg) downloads once and your browser keeps it.
- Listen to the result and download it.
Take the sound out of a video
Sometimes the part of a video you want is the sound: a talk to listen to on a walk, a voice memo recorded with the camera, the music from a clip you filmed, an interview you need to transcribe. This tool takes the audio track from an MP4, MOV, WebM or MKV video and saves it as an MP3, an M4A or a WAV file, ready for any player, editor or transcription service.
It also converts audio files. Choose a WAV, OGG, M4A, FLAC or MP3 and save it in another format: a huge WAV from a recorder becomes a small MP3, a FLAC becomes something your car stereo plays, an OGG becomes an M4A for an iPhone.
Private by design
The conversion is done by FFmpeg running inside your browser, with the LAME encoder for MP3. Your file is read straight from your device and the result is saved to your downloads, so recordings of meetings, lectures, family events and unreleased music never pass through someone else's server. The first time, the engine downloads once from WeaveAI's own engine server and your browser keeps it for next time.
Which format and quality
MP3 plays on everything. At 192 kbps it sounds the same as the original to most people; 320 kbps is the highest MP3 allows and suits music you care about; 128 kbps is fine for speech and podcasts and makes the smallest files. M4A uses AAC, which sounds a little better than MP3 at the same size and is the native format on Apple devices. WAV is uncompressed: the files are about ten times larger, but nothing is lost, which matters when you will edit the audio further.
Converting is quick, usually a few seconds per minute of sound. Title, artist and album tags are carried over where the original has them. Very large files, above about 500 MB, can run out of browser memory.
Questions
- Is my video uploaded?
- No. FFmpeg runs inside your browser and takes the sound out of the video on your device. The only download is FFmpeg itself, from WeaveAI's own engine server; your file never leaves your device.
- How long does it take?
- Usually a few seconds per minute of sound once the engine has loaded. Files up to a few hundred megabytes work well; above about 500 MB a browser can run out of memory.
- Which quality should I choose?
- 192 kbps MP3 sounds the same as the original to most listeners. Choose 320 kbps for music you care about, 128 kbps for speech, or WAV when you will edit the audio further and want no loss at all.
- Does it keep the title and artist?
- Yes, where the original file has them: tags such as title, artist and album are copied into the new file.