Audio Extractor - Extract Audio from Video Free

About Audio Extractor

Extract audio from any video file directly in your browser. No upload needed — all processing happens locally via the Web Audio API, keeping your content completely private.

Supports MP4, WebM, MKV, MOV, and AVI. Export lossless WAV for professional editing or compressed formats for sharing.

Ideal for podcasters, video editors, and content creators isolating audio tracks for transcription, editing, or repurposing — no software installation required.

When to extract audio from video

Separating soundtrack from source is useful across many scenarios:

• Transcription:Send the soundtrack asset to Whisper or Deepgram. sound is 90% smaller than recording, making upload and processing faster.
• Voice-over isolation:Extract vocal tracks from recordings to re-record or edit voice-over separately.
• Lecture or webinar archiving:Save only sound stream from lectures or webinars to create podcast-friendly versions for on-the-go listening.
• Music and ambient sound:Extract background music or ambient sound from clips for remixes, samples, or sound design.
• Screen recording cleanup:Remove source from screen recordings while keeping narration for documentation or guides.

All processing happens in-browser. Your footage never leaves your device.

WAV vs WebM audio: which format to choose

WAV is uncompressed PCM sound stream. Preserves full quality for professional editing. Trade-off: ~10 MB per minute at 44.1 kHz/16-bit.

WebM soundtrack (Opus) is compressed with excellent quality at a fraction of the size. At 128 kbps, Opus is virtually indistinguishable from WAV for most listeners.

Choose WAV for video editing and post-production where quality matters most. Choose WebM (Opus) for transcription, sharing, and archiving where storage efficiency is the priority.

Supported Video and Audio Formats

Accepts MP4, WebM, MKV, MOV, and AVI. Uses browser’s native media decoding.

Output: WAV (uncompressed PCM, 44.1 kHz or 48 kHz). ~10 MB per minute of soundtrack.

Input: MP4, WebM, MKV, MOV, AVI. Output: WAV.

Common Audio Extraction Use Cases

Common audio extraction scenarios:

Podcast and Interview Production

Podcasters record recording interviews, extract WAV for editing in DAW, export as MP3 for distribution.

Video Transcription Preparation

Extract sound stream before using speech-to-text services. sound is 90% smaller than source, meaning faster uploads and quicker results.

Music and Sound Effect Sampling

Music producers extract background music or dialogue samples for new productions. WAV preserves full fidelity.

Lecture and Webinar Archiving

Educational institutions extract sound stream from recorded lectures for podcast-friendly versions students can listen to on the go.

Content Repurposing for Audio Platforms

footage creators repurpose YouTube content for sound stream-only platforms. One recording becomes both visual and sound content.

Video Editing and Post-Production

Editors extract soundtrack tracks for separate processing — clean noise, adjust levels, apply effects, then recombine with source.