Audio Extractor — Extract Audio from Video Online, Free
Free online audio extractor: pull the audio track from MP4, MOV or WEBM video and save it as WAV or MP3. Runs in your browser — no upload, no signup.
Drop your audio or video file here
MP3, WAV, M4A, OGG, FLAC, or video (MP4, MOV, WEBM) · the audio track is processed locally in your browser
Choose a fileHow to use this tool
- 01
Add your video
Drop an MP4, MOV or WEBM video (or an audio file to convert it). The file is decoded on your device — nothing is uploaded.
- 02
Extract the audio track
The audio track is pulled out of the container and decoded right in your browser, in seconds.
- 03
Download as WAV or MP3
Preview the extracted audio, then save it as lossless WAV or a compact MP3.
Frequently asked questions
What does an online audio extractor do?
It takes a video file and saves just its sound as an audio file — for example turning an MP4 into an MP3 or WAV. This tool does it in your browser without installing anything.
Which video formats work?
MP4, MOV and WEBM are the reliably supported containers. The audio is decoded with your browser's built-in decoder, so widely used codecs (AAC, Opus, MP3 tracks) work.
Does extracting audio reduce quality?
WAV export re-encodes the decoded audio as lossless 16-bit PCM, so it keeps whatever the video contained. MP3 export compresses it — choose WAV for editing, MP3 for smaller files.
Is my video uploaded to a server?
No. Decoding happens locally in your browser. Your file never leaves your device and nothing is stored.
Is there a length limit?
Yes — very long videos need a lot of memory to decode, so up to about 30 minutes works reliably. For longer videos, trim them first.
Is this audio extractor free?
Yes. It runs on your device, so there is no server cost — all tools on this site are free.