How do I extract the audio from a video file?

Drop the video on the extractor above. The audio track is decoded by your browser, shown as a waveform, and exported as WAV, AIFF or MP3 to your downloads folder.

Which video formats are supported?

MP4, MOV and WEBM are decoded natively by modern browsers. MKV depends on the codecs your browser exposes, and MXF is not supported. If a file cannot be decoded you get a clear message rather than a broken export.

Which output formats can I export?

WAV and AIFF as uncompressed PCM, or MP3 at 320 kbps. WAV and AIFF apply no second round of lossy compression; MP3 re-encodes and is only worth choosing for a light review copy.

Is my video uploaded anywhere?

No. The video is decoded locally by your browser through the Web Audio API and the audio file is written in the page. No frame and no audio is sent to a server.

Will the audio quality be degraded?

Exporting to WAV or AIFF writes the decoded samples as uncompressed PCM, so no lossy compression is applied a second time. The audio can never be better than the compressed track already inside the video, but nothing further is lost.

Can I extract audio from an MOV straight from a camera?

Yes, provided the audio codec inside is one your browser can decode. Camera MOV files carrying PCM or AAC audio work.

Does the extracted audio stay in sync with the picture?

Yes. The audio is written from the start of the file at its decoded sample rate, so it lines up with the picture when you drop it on the timeline.

Is there a file size limit?

Free and pay-per-use runs are capped at 500 MB per file. With Pro there is no fixed cap, so the practical limit becomes your own machine's memory: the whole track is decoded uncompressed in the browser, which puts multi-gigabyte camera files within reach of most modern laptops but not of every phone.

Audio extractor

Extract Audio From Video – MP4, MOV & WEBM to WAV

Pull the audio track out of an MP4, MOV or WEBM file and download it as uncompressed WAV or AIFF, or as a 320 kbps MP3. The video is decoded inside your browser, so your rushes stay on your machine and nothing is sent to a server.

1st conversion free
No installation
No plugin
Files stay local

Drop a video file

MP4, MOV, M4V, WEBM. The video stays untouched; audio is decoded locally

Browse files

✓ 1st conversion free. ✓ Your audio stays on your device.

Watch how to extract audio from video

What this tool does for you

Pull the audio track out of MP4, MOV and WEBM files
Export uncompressed WAV or AIFF at the decoded sample rate
No lossy re-encoding when you export WAV or AIFF
Up to 500 MB per file on the free and pay-per-use plans; Pro lifts the cap to what your machine can hold in memory
Everything runs in your browser. Files are never uploaded to a server.

How it works

01. Drop the video
MP4, MOV or WEBM straight from your camera or editing folder.
02. Pick a format
WAV or AIFF as uncompressed PCM, or MP3 at 320 kbps for review.
03. Download
The audio file lands in your downloads, ready for your NLE.

Getting audio out of a video container

Containers and codecs

MP4, MOV and WEBM are containers: envelopes holding a video stream, one or more audio streams and metadata. Extraction opens the envelope and writes the audio stream to its own file. Whether it works depends on the codec inside, which is why an H.264/AAC MP4 always extracts while an exotic MXF may not.

Why extract at all

Camera audio is usually a scratch reference used for syncing to the recordist's files, but on smaller shoots it is the only audio there is. Either way, having it as a WAV means you can look at the waveform, sync it, clean it and mix it with the same tools as everything else.

Privacy on confidential footage

Rushes under embargo, interviews with protected sources and unreleased commercial work cannot legally be uploaded to a random conversion site. Extracting locally in the browser keeps the file on your machine and out of anyone's processing queue.

Professional use cases

Video editing

Grab a guide track from camera footage to sync against the sound recordist's files.

Documentary

Recover usable audio from an archive clip that only exists as a video file.

Post-production

Extract a reference mix from a picture export to check against the new pass.

Extract audio from MP4, MOV and WEBM

MP4, MOV and WEBM are containers: an envelope holding a picture stream, one or more audio streams and metadata. Extraction opens the envelope, decodes the audio stream and writes it to its own file. Whether that works depends on the codec inside, not on the file extension, which is why an H.264/AAC MP4 always extracts while an exotic professional container may not.

Video format	Support
MP4	Decoded natively. The usual case: H.264 or HEVC picture with AAC audio.
MOV	Decoded natively when the audio inside is AAC or PCM, which covers most camera files.
WEBM	Decoded natively. Opus or Vorbis audio from screen recordings and web exports.
MKV	Depends on the codecs your browser exposes. Often works, not guaranteed.
MXF	Not supported: browsers do not expose a decoder for it.

Looking for one specific conversion? MP4 to WAV, MOV to WAV, MKV to WAV, MP4 to MP3 and WEBM to MP3 each have their own page.

Export as WAV, AIFF or MP3

WAV

Uncompressed PCM at 16, 24 or 32-bit. The default for anything going into an edit or a mix.

AIFF

Uncompressed PCM at 16 or 24-bit, for Logic and older Mac-centric workflows.

MP3

320 kbps, for a review copy or a transcription pass. Lossy, so not for editing.

How to extract audio from a video

Drop an MP4, MOV or WEBM file on the extractor at the top of the page.
Wait for the audio track to decode; the channel count and duration appear.
Check the waveform and play it back to confirm you have the right take.
Choose WAV, AIFF or MP3, and the sample rate and bit depth if you need to change them.
Name the file and download it.

Quality when the source is compressed

Camera and web video almost always carries AAC or Opus audio, which is lossy. Extracting to WAV does not restore what that encoder discarded; it simply stops anything more from being lost. That matters, because re-encoding a lossy track to another lossy format — AAC to MP3, for instance — stacks two sets of artefacts.

So: WAV or AIFF for anything that will be edited, mixed or processed; MP3 only for a review copy. And if the shoot had a sound recordist, treat the extracted camera track as a sync guide and cut against the recordist's files instead — syncing audio and video covers that workflow.

See how it works

How to Extract Audio from a Video — No DAW RequiredWatch the step-by-step tutorial and pull the sound out of an MP4 or MOV in your browser.Watch the tutorial →

Your audio stays on your device

Decoding, processing and export all run in your browser: compressed formats are decoded with the Web Audio API, and WAV, AIFF and MP3 files are written by JavaScript in the page. Your audio is never uploaded to our servers. Only anonymous page analytics and, if you sign in, your account and payment details go online.

Frequently asked questions

How do I extract the audio from a video file?: Drop the video on the extractor above. The audio track is decoded by your browser, shown as a waveform, and exported as WAV, AIFF or MP3 to your downloads folder.
Which video formats are supported?: MP4, MOV and WEBM are decoded natively by modern browsers. MKV depends on the codecs your browser exposes, and MXF is not supported. If a file cannot be decoded you get a clear message rather than a broken export.
Which output formats can I export?: WAV and AIFF as uncompressed PCM, or MP3 at 320 kbps. WAV and AIFF apply no second round of lossy compression; MP3 re-encodes and is only worth choosing for a light review copy.
Is my video uploaded anywhere?: No. The video is decoded locally by your browser through the Web Audio API and the audio file is written in the page. No frame and no audio is sent to a server.
Will the audio quality be degraded?: Exporting to WAV or AIFF writes the decoded samples as uncompressed PCM, so no lossy compression is applied a second time. The audio can never be better than the compressed track already inside the video, but nothing further is lost.
Can I extract audio from an MOV straight from a camera?: Yes, provided the audio codec inside is one your browser can decode. Camera MOV files carrying PCM or AAC audio work.
Does the extracted audio stay in sync with the picture?: Yes. The audio is written from the start of the file at its decoded sample rate, so it lines up with the picture when you drop it on the timeline.
Is there a file size limit?: Free and pay-per-use runs are capped at 500 MB per file. With Pro there is no fixed cap, so the practical limit becomes your own machine's memory: the whole track is decoded uncompressed in the browser, which puts multi-gigabyte camera files within reach of most modern laptops but not of every phone.

Related audio tools

MP4 to WAV MOV to WAV MKV to WAV MP4 to MP3 WEBM to MP3 Audio Inspector Version française

Get your production audio edit-ready

Convert my file free