Audio Converter (WASM)
Convert audio to MP3/WAV/M4A locally in your browser using WebAssembly. First run downloads the converter engine.
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Choose an audio file
Tip: This runs in your browser. Large files may be slow or run out of memory.
Output format
Bitrate (MP3/M4A)
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Mobile inline (between input and results)
Note: The first conversion downloads ffmpeg.wasm core files from a CDN. If you want this to work fully offline, we can self-host the core assets in /public.