RootUtils

Audio Converter

Client-Side Secure

Free online Audio Converter powered by ffmpeg.wasm. Convert MP3, WAV, FLAC, and AAC files in your browser with waveform previews.

Privacy first

Conversion runs locally in your browser using WebAssembly. Files never leave your device. Perfect for quick podcast exports, voiceover cleanup, or converting FLAC masters to compact MP3s.

WebAudio metadata
ffmpeg.wasm core
Loading ffmpeg.wasm...

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Audio Converter (MP3, WAV, FLAC, AAC)

Convert and preview audio fully in your browser with ffmpeg.wasm. Drop a file, pick a format, and download instantly—no uploads or servers involved.

How it works

  • Load ffmpeg.wasm in the browser for local processing.
  • Decode metadata via the Web Audio API (duration, channels).
  • Transcode to MP3, WAV, FLAC, or AAC with sensible defaults.
  • Strip metadata for privacy before exporting.

Tips

  • Use WAV for lossless stems; MP3/AAC for lightweight exports.
  • Keep files modest (<50 MB) for quicker in-browser runs.
  • FLAC preserves quality while reducing size for archiving.

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