1
Choose Your Video
Drop a video on the page or tap choose a file. On a phone, pick it from your gallery or Files app. The Paste a link tab loads a video from a direct file URL.
Video to Audio Converter
Turn any MP4, MOV, WebM or MKV video into an audio file on your own device. Choose MP3 or WebM audio. Nothing is uploaded.
Files stay on your device
Drop a video here, or choose a file
Converts MP4, MOV, WebM and MKV video to MP3 at 128 to 320 kbps, or to WebM audio. It stays on your device.
Choose a fileYour browser converts the file. Nothing is sent to a server.
- No signup, no watermark
- No upload size limit
- About 2 sec for a 47 sec clip
- Works offline once loaded
How to Convert Video to Audio
2
Pick Quality and Trim
Pick the output: MP3 plays everywhere, WebM audio is Opus sound for browsers and editors. For MP3, choose 128, 192, 256 or 320 kbps, and turn on Trim to keep one part.
3
Convert and Download
Press Convert. The audio track is decoded and written on your device, usually in a few seconds. Play the preview, then download the audio file.
What a Video to Audio Converter Does
A video file is a container that holds a picture track and a sound track side by side. A video to audio converter reads the sound track, drops the picture, and saves the sound as an audio file such as MP3.
Because the picture is usually most of the file, the audio file is far smaller. A 10 minute 1080p video of about 300 MB becomes an MP3 of about 14 MB at 192 kbps.
| Video format | Where it usually comes from | Converts in the browser |
|---|---|---|
| MP4 | Phones, cameras, downloads, most editors | Yes |
| MOV | iPhone camera, Mac screen recordings | Yes |
| WebM | Browser screen and webcam recorders | Yes |
| MKV | OBS recordings, films and episodes | Yes, if the sound is AAC, Opus, Vorbis, MP3 or FLAC |
| AVI, WMV, FLV, 3GP | Older cameras and phones | Not yet |
Why Convert Video to Audio
Listen Without the Screen
Lectures, podcasts recorded on video, sermons and music videos are easier to play on a commute as audio, with the phone locked.
Save Space and Data
An audio file is often a twentieth of the video size, so it fits on a full phone and sends quickly on WhatsApp or email.
Feed Other Tools
Transcription services, audio editors and podcast hosts take audio files. Extracting the sound first makes those uploads smaller and faster.
MP3 or WebM Audio: Which to Pick
Pick MP3 when you want a file that plays on every phone, car stereo and app. It is the default, encoded at the bitrate you choose.
Pick WebM audio when you will keep using the file in a browser or editor that reads WebM, and want the sound kept as Opus. WebM audio is recorded while the video plays, so it takes as long as the clip.
Video to Audio: Frequently Asked Questions
Which video formats can I convert to audio?
MP4, MOV and WebM convert in every modern browser. MKV converts when its sound track is AAC, Opus, Vorbis, MP3 or FLAC. AVI, WMV, FLV and 3GP need a different engine and are not supported yet.
Which audio formats can I convert video to?
MP3 at 128, 192, 256 or 320 kbps, or WebM audio. WAV output is planned next.
Is my video uploaded to a server?
No. Your browser reads the video and writes the MP3 on your own device. Nothing is sent to MP4toMP3.io or anyone else, and the page keeps working with Wi-Fi off once it has loaded.
Does the audio lose quality?
MP3 removes some detail, but at 192 kbps or higher most people cannot hear the difference. The audio can never sound better than the sound track inside the video.
Can I convert a long video?
Yes. Videos up to about 45 minutes convert in one quick pass on a computer, 15 minutes on a phone. Longer videos use a slower mode that plays the sound through once.
Ready to Convert Video to Audio?
Choose a file at the top. It is free, private and done in your browser in a few seconds.
Convert now