Extract Audio

Extract the sound from a video as MP3, AAC, or WAV, entirely in your browser. Family clips, podcasts, and voice memos never leave your device.

Conversions

About Extract Audio

Extract Audio reads the audio track of a video file (MP4, MOV, MKV, AVI, and more) and writes it as a standalone audio file — MP3 for universal playback, AAC for smaller sizes, or WAV for lossless editing. This is the most common way to get the podcast from a webinar, the music from a concert clip, or the voice memo out of a long interview. Everything runs in your browser with FFmpeg WASM, so the original footage never leaves your device.

Best for

  • Turning a webinar recording into a podcast you can listen to offline
  • Saving a music clip from a personal concert video for ringtone trimming
  • Pulling a voice note out of a long interview for transcription

Pros

  • +Lossless copy of the audio track when codecs match (remux rather than re-encode)
  • +Choose MP3 (universal), AAC (smaller), or WAV (lossless) for editing
  • +Local FFmpeg in browser — unreleased footage and personal clips stay private

Cons

  • −Audio quality cannot exceed what's stored in the source video
  • −DRM-protected purchases cannot be processed (and cannot be unlocked here)

How to use Extract Audio

  1. 1

    Select or upload the source files from your local device storage.

  2. 2

    Specify conversion settings, options, or target output formats.

  3. 3

    Wait for the client-side browser logic to process the files securely.

  4. 4

    Download the finalized outputs directly to your system.

Frequently Asked Questions

Which audio format should I extract — MP3, AAC, or WAV?
Choose MP3 for universal compatibility with players and editors. Choose AAC for slightly smaller files at equal quality. Choose WAV only if you plan to edit the audio further in a DAW, since WAV preserves the original pulses without loss.
Will extracting reduce the audio quality?
Not when the format matches — MP4 audio (typically AAC) extracted as AAC is a lossless remux. Converting to MP3 re-encodes and adds a small amount of generation loss; keep the bitrate high (192 kbps or above) for clean sources.
Can I extract audio from encrypted or DRM-locked purchases?
No. DRM-locked movies from streaming services cannot be legally or technically processed. Only your own recordings, off-camera clips, or non-DRM files work in this tool.
Is there a video length limit?
There is no fixed limit, but extracting audio from very long files (multi-hour) needs enough RAM to read the streams in chunks. Phones with 2GB of RAM may struggle with full-length movies; trim first if you only need a few minutes.
Are my private videos uploaded during extraction?
Never. FFmpeg runs in WebAssembly inside your browser. Concert recordings, family clips, and interview footage never leave your device — there is no server-side upload step.

Related tools

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Extract Audio Quality Rating

4.8
25 reviews

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