動画を MP3 に（音声抽出）
動画から音声を抽出
ブラウザで動作 · アップロード不要
このツールとページ内の説明は、現在は英語のみです。動作は同じで、すべてブラウザ内で実行されます。
Drag & drop a video here
or
MP4, MOV, M4V, WebM, MKV or MPEG-TS
Your files stay on your device. Nothing is uploaded.
お使いのブラウザはこのツールを動かすには古すぎます。更新するか、最新の Chrome、Edge、Firefox、Safari をお使いください。
- 何も端末から出ません
- サーバーによるサイズ制限なし
- 登録不要・透かしなし
- 無料
How to extract audio from a video
- Choose your video.
- Pick the format: MP3 plays everywhere; M4A often copies the original sound with no loss.
- Press Extract and download the audio file.
Which format?
| Format | Best for | Quality |
|---|---|---|
| MP3 | Any player, car, phone | Re-encoded at the bitrate you choose |
| M4A (AAC) | Apple devices, small files | Copied as it is when the video has AAC sound (most do) |
| WAV | Editing in audio software | Uncompressed, large files |
| OGG (Opus) | Small files with good quality | Re-encoded |
Good to know
- Opens MP4, MOV, M4V, WebM, MKV and MPEG-TS.
- MP3 is made with the LAME encoder, built into this page.
- This works on video files on your device. It can't download from YouTube or other websites.
- No server-imposed file size limits. The new file is made in your device's memory, so very long videos need a computer with enough free memory.
Your audio stays on your device
Everything happens in your browser. Your recordings and music are never uploaded.
よくある質問
Which MP3 quality should I choose?
192 kbps sounds great for music and keeps files reasonable. 128 kbps is fine for speech.
Can I convert a YouTube link?
No. This site only works with files already on your device.
Is my audio uploaded?
No. It is processed in your browser and never sent anywhere.