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About this tool
Extract, trim, edit, and export audio from video files directly in your browser.
The Video to Audio Converter pulls the audio track out of video files in your browser using the Web Audio API, then gives you a real timeline where each clip can be trimmed, split, reordered, faded and gain-adjusted before export. Finished audio downloads as 16-bit PCM WAV rendered at the source sample rate, or as Opus in a WebM or Ogg container at 64, 128, 192 or 256 kbps. It is for podcasters, editors and students who need the sound from a recording as a usable file, not just a raw dump.
Open Video to Audio Converter on AltFTool — it loads instantly in your browser.
Drop video or audio files into the media pool (accepts video/* and audio/*, multiple files at once).
Trim clip edges, Split at the playhead, reorder and set fade in, fade out and gain, then pick 'Export as' WAV, WEBM or OGG and click 'Render mix'.
Click 'Download' to save the finished mix as splice-deck-mix.wav, .webm or .ogg.
Every imported file becomes a clip you can trim by dragging its edges, split at the playhead, drag to reorder, and set fade-in, fade-out and gain on individually.
If a video's audio cannot be decoded directly, the tool plays it through an audio graph and records the stream at 256 kbps rather than just reporting an error.
The WAV path renders the whole timeline through an OfflineAudioContext and writes uncompressed 16-bit PCM at the source sample rate, so nothing is re-compressed before you hand it to an editor or transcriber.
WAV as uncompressed 16-bit PCM at the source sample rate, or Opus in a WebM or Ogg container at 64, 128, 192 or 256 kbps. Pick WAV for editing and transcription; pick a compressed format for sharing or upload.
No. Files are read as array buffers and decoded by your browser's own Web Audio engine, the timeline is rendered locally, and the export is created as a blob and downloaded. Nothing is transmitted to a server at any stage.
You can do both. Each source added to the timeline arrives as a full-length clip with adjustable in and out points, and can be split at the playhead, deleted, dragged into a new order, and given its own fade-in, fade-out and gain before everything renders as one file.
One that provides MediaRecorder, AudioContext and OfflineAudioContext — recent Chrome and Edge are the safest choice, and the tool checks for all three on load and tells you if any are missing. Keyboard control uses Space to play or pause, Delete to remove a clip and the arrow keys to nudge the playhead.
Add the Video to Audio Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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