Category: Converters
Video to Audio
Extract a video's audio track locally as a WAV file
Extract the audio track from a local video file and download it as a WAV file, decoded and converted entirely in your browser. The video is never uploaded.
Choose a video to extract its audio track.
The extracted audio downloads as WAV, which is uncompressed and usually larger than the video's original audio track, so the browser can produce it reliably without a server-side encoder.
The audio track is decoded and converted to WAV entirely in your browser. The video is never uploaded.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
This tool hands the video file to the browser's own Web Audio decoder, the same one behind this site's audio tools, and asks it to decode just the audio track. Whether that works depends on which codecs your browser can decode from that container; most browsers handle the audio inside common MP4 and WebM video without trouble. The decoded audio is then rendered to a WAV file, which is uncompressed and usually larger than the video's original audio track, in exchange for not needing a server-side encoder to produce it reliably.
How to use it
- Choose a video file.
- Wait for the browser to decode its audio track.
- Preview and download the extracted audio as a WAV file.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Is my video uploaded to extract the audio?
- No. Decoding and conversion both happen in your browser; the file is never sent to a server.
- Why did it fail to find an audio track?
- The video may have no audio track, or use an audio codec your browser cannot decode from that container.
- Why is the WAV file larger than the original video?
- WAV stores audio uncompressed. That makes it reliable to produce entirely in the browser, but larger than the compressed audio inside the source video.