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Volume Booster

Boost quiet videos up to 300%, or use loudness normalisation for a consistent, professional level.

or drag & drop videos, audio or images here, or paste with Ctrl+V

MP4 · MOV · MKV · AVI · WebM · WMV · FLV · GIF · MP3 · WAV · M4A · and 40+ more

  • Files never leave your device
  • No sign-up, no watermark
  • Free forever

How to use Volume Booster

  1. Step 1Add your video.
  2. Step 2In Audio, raise the Volume slider or turn on “Normalise loudness”.
  3. Step 3Export.

Volume Booster: FAQ

Is it private?

Yes. Everything runs in your browser using FFmpeg compiled to WebAssembly. Your files are never uploaded to our servers.

Is it free?

Yes, free with no watermark and no sign-up. Pro adds extras like 4K export, unlimited batch and AI subtitles.

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