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Libre Audio Extractor

Extract the audio track from any video as MP3, M4A, AAC, or lossless WAV. No upload — everything is processed locally in your browser.

Sen límite de tamaño de ficheiroOs ficheiros permanecen privadosNon é necesario iniciar sesiónLibre para sempre

Solta ficheiros aquí ou fai clic para buscar

MP4, WebM, MOV, AVI, Audio sen límite de tamaño de ficheiro

Explorar ficheiros

Os teus ficheiros nunca saen do teu dispositivo. Todo o procesamento realízase localmente no teu navegador.

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Extract Audio for a Podcast Save Music from a Video Get Audio for Transcription Make a Ringtone from a Video Extract Audio for Video Editing

Como funciona

Pulling the audio track out of a video normally means an upload to some conversion site. Here the real FFmpeg encoder runs in your browser, so the video never leaves your device.

1
FFmpeg.wasm loads once
The WebAssembly build of FFmpeg (~30 MB) downloads on first use and is then cached for instant reuse.
2
You choose a format and bitrate
Your file is loaded into FFmpeg's in-memory filesystem. The video stream is dropped (-vn) and only the audio is kept.
3
FFmpeg re-encodes the audio
MP3 (libmp3lame), AAC, or lossless WAV (PCM) — the same encoders used by desktop FFmpeg, running locally on your CPU.
4
The audio file is offered for download
The result is handed back as a downloadable blob and can be previewed with the built-in player.

No upload, no queue, no file-size cap. Your video and its audio stay entirely on your device — safe for interviews, lectures, music, or any private recording.