Scribeify

動画から音声抽出 — 無料MP3コンバーター

どんな動画からも音声を MP3, WAV, M4A, AAC として取り出し。ポッドキャスト、音楽抽出、ナレーション抽出に最適。アップロード不要。

動画から音声抽出 — 無料MP3コンバーター を3ステップで使う

  1. 1

    Upload the video

    Drag or browse for a video. MP4, MOV, AVI, MKV, WebM supported up to 2 GB.

  2. 2

    Pick output format

    Choose MP3 for universal support, WAV for uncompressed quality, M4A for Apple devices, or AAC for efficiency.

  3. 3

    Download the audio file

    FFmpeg.wasm extracts the audio locally. Your video never leaves your browser.

動画から音声抽出 — 無料MP3コンバーター を選ぶ理由

  • Multiple output formats

    MP3, WAV, M4A, AAC, OGG. Pick the right format for your target device or workflow.

  • Quality control

    Choose bitrate (96-320 kbps for MP3, lossless for WAV) to balance size and fidelity.

  • No upload

    Your video is processed locally in your browser via FFmpeg.wasm.

  • Fast extraction

    When the container already has a compatible audio codec, we stream-copy instantly. Otherwise quick re-encoding.

  • Free, no watermark

    Unlimited use, no account, no stamping on your file.

動画から音声抽出 — 無料MP3コンバーター の利用者

  • Podcast production

    Extract audio from interview videos to edit as a podcast episode.

  • Music extraction

    Save a song from a concert video or music video for personal listening.

  • Transcription prep

    Convert long meeting recordings to MP3 before sending to a transcription service.

  • Voice memos

    Pull narration from a how-to video to reuse as audio lessons or voiceover.

世界中のクリエイターのために

世界中のクリエイター、ジャーナリスト、学生、研究者のために。

よくある質問

What audio formats are supported as output?
MP3 (universal), WAV (uncompressed), M4A (Apple ecosystem), AAC (efficient), OGG (open-source).
Will the audio quality be worse than the source?
If the video container already holds AAC or MP3 audio and you choose a matching format, we stream-copy (no re-encoding) — bit-identical. Otherwise re-encoding at high bitrate preserves perceptual quality.
Is there a length limit?
Reliable up to about 2 hours on modern desktops. Mobile browsers handle shorter content better.
Can I choose the bitrate?
Yes. MP3 supports 96, 128, 192, 256, 320 kbps. WAV is lossless. M4A/AAC supports 96-256 kbps.
Are my files uploaded?
No. All processing happens in your browser.
Does extracting audio work for DRM-protected videos?
No — DRM-protected content (Netflix, Apple TV, etc.) cannot be processed by any tool. Only your own files or DRM-free content.

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