Video to Audio Extractor
Extract the audio track from an MP4, MOV, WebM or MKV video and download it as a WAV file, with sample rate, mono and normalise options.
Drag & drop a video here, or click to browse
MP4, MOV, WebM, MKV, AVI or OGV — whatever your browser can decode. No uploads. Your video stays on your device.
Pick a video and its audio track is extracted here in this tab — nothing is uploaded.
This browser has no Web Audio support, so the audio track cannot be extracted here. Try the latest Chrome, Edge, Firefox or Safari.
Video file
Extraction settings
Most cameras and screen recorders record at 48 kHz. Mono at 16 kHz keeps podcasts and transcription files small; leave the defaults alone for music.
Extracted audio
The audio track is completely silent — this video may have been recorded without sound.
How it works
Drop in a video and the browser's own Web Audio API demuxes and decodes just its audio track — the video frames are never touched, so nothing has to be re-encoded and no multi-megabyte converter has to download first. The decoded samples are rendered into an OfflineAudioContext at the sample rate and channel count you pick (which also handles high-quality resampling and stereo-to-mono down-mixing) and written out as a standard RIFF/WAVE file, so the result is a lossless copy of the audio that was inside the video. Turn on normalising to lift a quiet camera or screen-recording track so its loudest peak sits at −1 dBFS, which is the usual fix for interviews and lecture recordings that came out too soft. MP4, MOV, WebM, MKV and OGV all work as long as your browser can decode the audio codec inside them; AAC and MP3 tracks play everywhere, while a few browsers build without AAC support and will say so. Everything happens inside this tab — no upload, no queue and no account — so private footage never leaves your device.
Frequently asked questions
Is my video uploaded anywhere?
No. The file is read and decoded with the Web Audio API inside your browser tab, so the video never leaves your device — no server, no account and no shareable link. That makes it safe for private footage, client work, interviews and screen recordings, and it also means big files are not limited by an upload speed.
Which video formats can I extract audio from?
Anything your browser can decode: MP4 and M4V, MOV, WebM, MKV, OGV and most AVI files work in current Chrome, Edge, Firefox and Safari. Only the audio track matters, so the video codec is irrelevant. A few browser builds ship without AAC support, and if that is the case the tool tells you instead of failing silently — Chrome or Edge will normally read the same file.
Why is the output a WAV file and not an MP3?
WAV is written natively in the browser, so no encoder has to be downloaded and nothing is re-compressed: the result is a lossless copy of the audio that was inside the video, ready for editing or transcription. If you need something smaller, drop the sample rate to 16 kHz and switch to mono for speech, or run the WAV through a separate MP3 encoder afterwards.