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ガイド

動画をMP3に変換オンライン — プライベート & 無料

ブラウザ内で動画ファイルから音声を完全に抽出する方法を学びます。アップロードなし、サーバーは必要ありません、ConvertCraftを使用すると完全にプライベートです。

Whether you want to rip a podcast intro from a video lecture, save a song from a concert recording, or extract dialogue from a clip, converting video to MP3 is one of the most common file tasks on the web.

Most video-to-audio converters require uploading your file to a server, which is slow for large videos and a privacy risk if the content is personal or confidential. ConvertCraft handles the entire extraction in your browser using FFmpeg compiled to WebAssembly.

How it works: 1) Open the Audio Converter tool. 2) Drop your video file (MP4, WebM, MKV, AVI, MOV). 3) Select MP3 as the output format and choose a bitrate (128k, 192k, or 320k). 4) Click Convert and download the audio file.

変換は速く — 通常、5分で1080p MP4ファイルを、現代のノートパソコンで10秒以内にMP3に変換できます。アップロードすることなく、利用可能なブラウザのメモリ制限を超えてファイルサイズ制限はありません。

ConvertCraftは、MP3以外にもFLAC、OGG、WAV、AACなどの複数の形式を抽出できます。動画の特定のセグメントだけを抽出することも可能です。