Got a video file and only need the sound? This video to audio converter handles the upload side of the job: drop in an MP4, MOV, MKV, WebM, or AVI, pick an output format, and download the audio as MP3, WAV, M4A, AAC, or FLAC. Nothing to install, and the file stays in your browser only as long as the conversion takes.
As a video to MP3 converter it just outputs MP3. It also extracts the audio from a video as WAV, M4A, AAC, or FLAC when you need something else. If your video lives at a URL instead of on your drive, the extract audio from a video link tool is built for that, same formats, different starting point. For a YouTube link straight to an uncompressed file, the YouTube to WAV converter is the direct route.
How to convert a video to audio
- Add your video: drag in an MP4, MOV, MKV, WebM, AVI, or M4V file. The free online tool on this page takes files up to 2 GB.
- Pick the output: MP3 for anything you will share or play, WAV or FLAC if you need lossless, M4A or AAC for Apple devices.
- Convert and download: the tool strips the audio track and hands you the file. A 30-minute clip is usually done in well under a minute.
The audio-only file is a fraction of the size. A 1GB screen recording drops to roughly 30 to 40MB as a 192kbps MP3, which is the whole reason most people do this before emailing, uploading, or transcribing.
Which format should you pick?
Short version: MP3 unless you have a reason not to. It plays everywhere and the file is small.
- MP3: universal. Podcasts, sharing, phone playback, and most transcription tools take it without complaint.
- WAV and FLAC: lossless. Pick these if you will edit, master, or feed a music or voice-cloning tool that wants uncompressed input.
- M4A and AAC: better sound than MP3 at the same file size, and the default on iPhone (Voice Memos, Apple Music).
- OGG and Opus: smallest at low bitrates, but the worst compatibility once you leave the browser.
One genuinely useful shortcut: if the audio is headed for Whisper or another transcriber, export 16kHz mono WAV. It resamples to that internally anyway, so you cut the upload size for nothing lost. For the full format-and-bitrate breakdown by use case, the audio extractor reference has a decision table down to sample rate and channel layout.
Convert by video format
People search by the exact file they are holding, so here is the mapping. Every row is the same job: drop the file, choose an audio format, download.
| You have | Common search | Output |
|---|---|---|
| MP4 | MP4 to MP3 converter | MP3, or M4A / WAV |
| MOV (iPhone, QuickTime) | MOV to MP3 | MP3 or M4A |
| MKV | MKV to MP3 | MP3, with an audio-track choice |
| WebM | WebM to MP3 | MP3 or OGG |
| AVI or M4V | AVI to MP3 | MP3 or WAV |
MKV is the one to watch. It often carries more than one audio track (dubbed languages, director commentary), so pick the track you actually want before converting or you will export the wrong language and not notice until you play it back.
What people pull out of a video
Not everyone wants the whole track. The common jobs:
- Music and soundtracks from a performance or a video you produced.
- Voice and dialogue from an interview, a lecture, or a recorded call, usually on its way to a transcript.
- A meeting or Zoom recording turned into an MP3 to file, share, or hand to a notetaker.
- A screen recording stripped down to audio so the file is small enough to email.
If the real goal is a transcript or a summary, skip the download and send the whole video to the AI video summarizer or the meeting notetaker. Converting first just adds a step.
Pricing
The free plan needs no credit card and covers 2 transcriptions of recordings up to 45 minutes each. To keep going after that, the 7-day trial opens full access and does need a card to start, and Pro is $19/month billed annually. There is no recurring “unlimited free” tier, the accuracy page lays out exactly what the free account covers.
