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Audio Format Converter

NEW

Convert audio files between WAV, MP3, OGG, M4A, FLAC, and AAC formats directly in your browser. Upload a file, choose the target format, and download — all client-side.

Drag and drop an audio file here, or browse

Supports WAV, MP3, OGG, M4A, FLAC, AAC, OPUS, WMA, AIFF

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How to use Audio Format Converter

  1. Drop an audio file or click to browse.
  2. Review the file info cards (duration, sample rate, channels, bitrate, peak level).
  3. Click a target format button (WAV, MP3, OGG, M4A, FLAC, AAC).
  4. Adjust quality bitrate if converting to a lossy format.
  5. Click Convert File and download the result.

What is Audio Format Converter?

This audio format converter uses the Web Audio API and MediaRecorder API to convert audio files between popular formats. WAV output is always lossless via direct PCM encoding. For lossy formats (MP3, OGG, M4A, AAC), the tool uses your browser's built-in codecs via MediaRecorder, falling back to WAV when the target codec is unavailable.

All processing happens locally in your browser — no files are ever uploaded to a server.

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FAQ

Is the conversion truly client-side?
Yes. The tool decodes your file with the Web Audio API and re-encodes it using MediaRecorder (for lossy formats) or direct PCM encoding (for WAV). Nothing is uploaded.
Why does MP3/AAC sometimes fall back to WAV?
Not all browsers include MP3 or AAC encoders. Chrome supports Opus/OGG well; Safari supports AAC/M4A natively. When your browser lacks a codec, we export a lossless WAV instead, which works everywhere.
What's the difference between FLAC and WAV conversion?
Both are lossless formats. The tool exports both as WAV since a full FLAC encoder is too large to bundle. WAV is universally compatible and preserves all audio quality.

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