Keep just the sound of an iPhone MOV, a WebM screen recording, an MKV or an MP4 as an MP3 you can play anywhere. Nothing is uploaded, and there’s no account, watermark or limit.
Add your videos to “Drop MP4 / MOV / WebM / MKV files here”, by dragging them in or tapping to browse. You can mix formats in one batch.
Check each row: it lists the length and resolution, and warns “This video has no sound track” if there is nothing to save.
Pick a bitrate under “MP3 quality” (192 kbps (recommended) suits most uses), then press “Convert 1 file to MP3”; the number follows how many videos you added.
Download each MP3 as it finishes, or use “Download all (.zip)” for the whole batch, and “Clear list” to start over.
This page accepts the four video files people most often have lying around: MOV from an iPhone or a Mac screen recording, MP4 from Android phones, cameras and downloads, WebM from browser-based recorders and video calls, and MKV from OBS or long recordings. Whatever the container, only the sound is kept, so a 2 GB film of a one-hour talk becomes an audio file of a few dozen megabytes.
The sound inside those files is AAC, Opus, Vorbis, FLAC, AC-3 or occasionally MP3 already. Everything except MP3 is decoded and re-encoded with the LAME encoder at the bitrate you chose; an MP3 track is copied without touching it. One hour at 192 kbps is about 86 MB, at 128 kbps about 58 MB.
A video can hold several sound tracks, for example two languages in an MKV or a commentary track. filetidy takes the main track only. Surround sound such as 5.1 is folded down to stereo, because MP3 players and earbuds play two channels anyway.
The video picture, subtitles, chapters and metadata such as the location your phone recorded are all left behind. The MP3 is named after the video, with .mp3 instead of the old extension.
iPhone & iPad
Shortcuts saves an M4A audio file. That plays on every iPhone, Mac and recent Android phone; use the converter above when something insists on MP3.
Windows
Audacity also lets you cut silence or applause before exporting, which helps with long lecture recordings.
Audio is the useful part of many videos: a conference talk or sermon to listen to on a commute, a lecture recording to review before an exam, an interview to transcribe, a song you filmed at a concert, or a voice memo you shot as a video because the camera was already open. As an MP3 it takes a fraction of the storage, plays with the screen off and goes into any podcast app, car or speaker.
For speech, 128 kbps is plenty and keeps hour-long recordings small; transcription tools work just as well with it. For music recorded on a phone, use 192 kbps. Reserve 320 kbps for good-quality music videos.
If you plan to edit the sound in an audio editor, or want the exact original sound without any re-encoding, extracting the track as it is (often M4A) or as WAV is a better start than MP3. If the person receiving the file also needs the picture, send a muted or trimmed video instead.
The main audio track, normally the one your player starts with by default. Other languages, director's commentary and audio-description tracks are not included. This page can't pick another track, so for a second language you would need a desktop tool that lets you choose the stream.
Yes. Multichannel sound, including AC-3 from MKV files, is decoded and mixed down to two channels before MP3 encoding. The result plays like a normal stereo track on headphones, a phone or a car stereo.
Yes. Only the sound is decoded and encoded, which is far lighter than re-encoding the picture, so long files go much faster than a video conversion of the same length. Very large files may still run out of memory on phones; on a computer this is rarely an issue.
Some videos genuinely contain no audio: many screen recordings made without system sound or microphone, GIF-style clips from social apps and muted exports. There is nothing to convert in that case, and the row shows it before you press the button.
Yes. iPhone videos are MOV files with AAC sound, whether the picture is HEVC or H.264. Only the audio is needed, so the picture codec doesn't matter. Send the videos to a computer, or open this page on the iPhone itself and pick them from Photos.
Converting your own recordings, or files you have the right to use, is fine. Copying sound from copyrighted videos you don't own may break their terms or copyright law where you live. filetidy only processes files already on your device.
Last updated October 28, 2026