Audio Converter
Convert audio files in your browser with the Web Audio API. Export to WAV (PCM) and, where supported, WebM/Opus, OGG/Opus or M4A. Free, private, no upload.
All processing happens locally in your browser. Files are never uploaded.
Convert your audio online
Drag and drop an audio file here, or click to browse (max 50 MB)
Introduction
Audio Converter decodes your file with the Web Audio API and re-encodes it into a format your browser supports. WAV (PCM) is always available, and additional formats such as WebM/Opus are listed only when the browser's MediaRecorder supports them. Everything runs locally, so your audio never leaves your device.
Features
- Drag and drop audio files up to 50 MB
- WAV (16-bit PCM) output always available
- Detect supported encodings with MediaRecorder.isTypeSupported
- Disabled options clearly marked as unsupported
- Live conversion progress with cancel
- Fully local processing, no uploads
How to use
- 1Drag an audio file onto the drop zone or click to browse.
- 2Wait for the file to decode.
- 3Choose an output format; unsupported options are disabled and explained.
- 4Click Convert audio, watch the progress, then download the result.
Frequently asked questions
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