Audio Compress

Reduce audio file size

Preparing audio processing engine...

Loading ffmpeg.wasm library (~30MB). This happens once and will be cached.

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💡 Tips:

  • Bitrate: Lower bitrates = smaller files but reduced quality. 128k is good for speech, 192-256k for music
  • Format Choice: MP3 is most compatible, AAC offers better quality at same bitrate, OGG is open-source
  • Quality Presets: Use Low for podcasts/voice, Medium for general use, High for music
  • Sample Rate: 44.1kHz is standard CD quality and works for most uses
  • Preview First: Always listen to the compressed audio before downloading
  • Multiple Compressions: Avoid compressing already compressed files (like MP3) multiple times
  • Privacy First: All processing happens on our secure servers - your files are protected

🔒 🔒 For your privacy, this tool runs entirely in your browser. Your files never leave your computer—zero uploads to any server.