FAK LAB Video to Audio
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Video to Audio Converter

Extract audio from any video file — 100% in your browser, nothing uploaded to any server

Drop a video here or click to browse
MP4, WebM, MOV, AVI, MKV and more

How to Use the Video to Audio Converter

  1. Drop or select a video file (MP4, WebM, MOV, AVI, MKV).
  2. Preview the video and check its metadata (duration, resolution, size).
  3. Choose your preferred output format and audio bitrate.
  4. Optionally set start and end times to extract a specific portion.
  5. Click "Extract Audio" and wait for processing to complete.
  6. Preview the extracted audio and click "Download Audio" to save.

Technical Overview & Use Cases

This tool uses the Web Audio API to decode video audio tracks into PCM data, then encodes it as WAV format. All processing happens locally in your browser using OfflineAudioContext for accurate trimming and rendering.

Real-world use cases:

Privacy & Security Guarantee

This tool is part of the FAK LAB ecosystem, founded by Faizan Ahmad Khan Khichi. Audio extraction is performed 100% client-side using the Web Audio API. No data is ever stored or shared.

Frequently Asked Questions

What audio format is the output?

The extracted audio is saved as uncompressed WAV for maximum quality. You can convert it to MP3 using other tools if needed.

Is there a file size limit?

There's no hard limit, but very large files (over 500MB) may be slow to process depending on your device's RAM.

Why does my video format fail?

Some codecs aren't supported by the browser's audio decoder. Try converting to MP4/WebM first, or use a Chromium-based browser for wider codec support.