Extract Audio from Video

Pull the soundtrack out of an MP4, MOV or WebM video as MP3 or WAV.

Select a video file

Pull the soundtrack out of a video (MP4, MOV, WebM, MKV) as MP3 or WAV. Runs in your browser — works best in Chrome and Safari.

点击选择，或将文件拖到此处

如何 Extract Audio from Video

1
Add the video
Drop in an MP4, MOV, WebM or MKV file — it stays on your device.
2
Pick a format
Choose MP3 or WAV for the extracted soundtrack.
3
Extract and download
Click Extract audio and save the audio-only file.

Is my video uploaded?+

No. The browser decodes the video's audio track locally and the audio file is built on your device — the video never leaves it.

Which browsers work best?+

Chrome and Safari decode MP4/MOV/WebM audio reliably. Firefox support is partial — if it can't read the track, the tool tells you clearly.

Does it re-encode the video?+

No — it only reads the audio track and writes it out as MP3 or WAV. The video itself is untouched and not saved.

What about large video files?+

The audio is decoded into memory, so a multi-GB 4K video may not fit. Shorter clips and 1080p files are fine.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。